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October 23, 2018, 01:53:41 PM

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Shops/dealers / Re: Purple-Sky-Minerals / David Hospital
« Last post by David Hospital on August 24, 2018, 12:56:30 PM »
Hi lovers and passionates of systematic minerals,

The new auction of systematic minerals is online at E-rocks /Purple Sky Minerals !!


Some outstanding rarities in this auction are:

Stefanweissite (Extremely rare new mineral, IMA 2018-020, named in honour of the editor of Lapis magazine !)(Very limited find)
Red Beryl from Wah Wah mountains !
Ludlamite (outstanding specimen !)
Sperrylite (perfect crystal on matrix from Canada !)
Vysotskite (very rare palladium mineral)
Ruizite & kinoite
Corderoite & Kenhsuite (exceptional transparent corderoite crystal !)

....so I highly recommend to have a look !
Mineral fairs/meetings / Re: Desautels micromount symposium
« Last post by Frank de Wit on August 22, 2018, 07:39:24 AM »
Desautels micromount symposium
Organized by the Baltimore Mineral Society http://www.strahlen.org/forum/index.php/topic,6274.0.html

19-21 october 2018

The Friends School of Baltimore
5114 North Charles St; Baltimore, Maryland, USA

Also see:
Clubs/societies / Re: Netherlands, Gea
« Last post by Frank de Wit on August 20, 2018, 07:27:10 PM »
Clubs/societies / Re: Netherlands, Landelijk Geologisch Platform
« Last post by Frank de Wit on August 20, 2018, 07:25:59 PM »
Oprichting van de federatie “Landelijk Geologisch Platform”


Op 12 juli 2018 zijn bij de notaris de Statuten van het Landelijk Geologisch Platform ondertekend door de besturen van de Stichting Geologische Aktiviteiten en de Nederlandse Geologische Vereniging.

Het uitgangspunt voor het Landelijke Geologisch Platform (afgekort LGP) is het behartigen van alle belangen m.b.t. de geologie voor hen die in dit gebied hobbymatig actief zijn. Het LGP vormt een koepel om samen sterk te staan en een spreekbuis te zijn voor “amateur geologisch Nederland”.

De  federatie is zodanig  opgezet dat anderen,  die ook  in dit veld actief zijn, zich makkelijk kunnen aansluiten. Overigens blijven alle participerende organisaties zelfstandig bestaan. De samenwerking zal plaatsvinden op project basis. Daartoe kunnen onder andere gerekend worden: de uitgifte (gedrukt of digitaal) van periodieken/tijdschriften; het organiseren van cursussen; het organiseren van landelijke activiteiten en het onderhouden van een website.

Het doel van de Federatie LGP is tweeledig: 1) het bevorderen van de belangstelling voor de geologie in de ruimste zin van het woord en 2) belangenbehartiging. Het aantal leden van de beide participerende organisaties bedraagt nu al ruim 2500.
Het LGP kan gesprekpartner zijn in de verhouding met o.a. overheden, bedrijfsleven, musea en universiteiten. De federatie kan voor groeve exploitanten mogelijk een waarborg bieden door middel van strikt toepasbare excursie gedragsregels te hanteren voor de bij de organisatie aangesloten leden. Hierbij gaat het ook om gemeenschappelijke aansprakelijkheidsdekking tot stand te brengen.

Het ondertekenen van de Statuten is een eerste stap op weg naar een landelijk netwerk van geologisch actieve organisaties.

Voor meer informatie kunt u contact opnemen met:
de voorzitter van de federatie, Herman van Dennebroek; 0355258204 of educatie.ict@gea-geologie.nl
de penningmeester van de federatie, Jan Smit; ngv.penningmeester@gmail.com
de secretaris van NGV, Henk Scholts; ngv.secretaris@gmail.com
de secretaris van GEA, Rienk Arnoldus; secretaris@gea-geologie.nl
Clubs/societies / Netherlands, Landelijk Geologisch Platform
« Last post by Frank de Wit on August 20, 2018, 07:24:58 PM »
Shops/dealers / Re: Excalibur Mineral / Tony Nikischer
« Last post by Frank de Wit on August 19, 2018, 12:14:14 PM »
CATALOG 21805 – Volume XLV, No.5

ACHYROPHANITE (IMA 2018-011)- Arsneatnaya fumerole, Kamchatka, Russia
Another weird new species from the Tolbachik Volcano, here as micro elongated, acicular yellow crystals on basalt scoria. Formula: (K,Na)3Fe3+,Ti,Al,Mg)5O2(AsO4)5 - orthorhombic, IMA # 2018-011. The mineral is named for the Greek "straw - to appear as" in allusion to its color and habit. Excellent micro potential for this new species, overall matrix sizes range from about 5mm to 10mm, priced at 150.00, 175.00 and 200.00 each, depending on quality and

ANTIMONY- Prince William Parrish,York Co., NB, Canada
From old material originally acquired from the stocks of the Colorado School of Mines, the precise locality for this material is currently known as the Lake George Antimony Mine, formerly aka Price Edward Mine, the deposit first discovered in 1863! The antimony occurs as tint, silver-colored massive aggregates admixed with micro stibnite needles in rock matrix. Exceptionally dense specimens, sizes from 1cm to 3.5cm @ 10.00, 20.00 and 30.00 each.

ARMSTRONGITE- Khan-Bogdinskii Massif, Gobi Desert, Mongolia
Brownish masses and aggregates of this rare Ca-Zr silicate scattered in granite pegmatite matrix, associated with feldspar, quartz, aegirine etc.. Type locality material from the Dorozhnyi pegmatite, named for astronaut Neil Armstrong, the first man to walk on the moon! Specimens from 2.5cm to 10cm @ 25.00, 50.00, 65.00, 100.00 and 150.00 each.

BASSANITE- S.A.M.Corp Sulfur Mine, nr. Taft, California
An altered white to transparent veinlets of somewhat columnar bassanite and pseudos after gypsum lightly scattered in matrix, associated with minor brownish punky shale seams. From an old lot of Art Eadie's original discovery in 1953, sizes from fragments in 2cm vials to nearly 3cm matrix samples @ 20.00, 35.00 and 50.00 each.

BEUDANTITE- Black Pine Mine, Granite Co., Montana
Rich, vuggy quartz matrix specimens shot through with lustrous, dark yellowish brown micro beudantite crystals well scattered in each sample, occasionally with secondary copper minerals as well. Will provide excellent mounts for the species, with a wide variety of associations as well, matrix specimens from 2cm to 5cm across @ only 10.00, 17.50, 25.00 and 35.00 each.

BROCHANTITE w/ PSEUDOMALACHITE- Douglas Hill Copper Mine, Lyon Co., Nevada
Superb, dark green, glassy micro crystals of brochantite richly scattered in seams and vugs, making fine thumbnail to small cabinet specimens! Quite attractive with brilliant luster and all with micro potential, some overlaying an attractive bed of green pseudomalachite and/or blue chrysocolla, potentially with other copper minerals as well. Overall sizes range from about 2cm up to 7cm across @ 7.50, 10.00, 20.00, 30.00, and 45.00 each, priced
according to quality. Very nice!

CALCITE- Wenshan Mine, Yunnan Province, PR China
Colorful, well formed calcite crysals to as rhombs and rounded scalenohedrons intergrown and comprising matrix, forming attractive, honey-colored groups. From a prolific Chinese deposit, specimens range from about 4.5cm to 6cm, priced according to aesthetics @ 20.00, 35.00 and 55.00 each.

CHONDRODITE, GRAPHITE, DIOPSIDE- Lime Crest Quarry, Sparta, Sussex Co. New Jersey
A hefty specimen collected in May, 1983, ex-Howard Moore Collection, here as richly scattered, yellowish-tan aggregates of chondroite intermingled in white calcite matirx, associated with small flattened aggregates of graphite. Under SW UV, the chondroite offers a pleasing, bright yelow fluorescence, and it also discloses pale blue blebs of admixed diopside throughout the sample. Generous 10x6x4cm fluoresccent specimen @ 40.00. One only.

COMBEITE- Oldoinyo Lebgai Volcano, Tanzania
A rare mineral, found here in 2003 during an expedition to this volcano, combeite occurs as glassy, thin reaction rims surrounding wollastonite phenocrysts, scattered in matrix and associated with blocky, glassy nepheline, aegirine etc. See our Mindat.org image for details. All specimens with arrows, sizes ranging from about 2cm to 4cm @ 125.00 and 175.00 each. Excellent!

CYLINDRITE- Trinacria Mine, Poopo, Oruro, Bolivia
These large, rich specimens show the typical cylindrical habit of this tin sulfosalt mineral, these from a 1995 expedition to this classic locality. Interesting in appearance and rich for the species, consisting of aggregates of cylinders associated with other sulfosalt minerals, likely with franckeite, sphalerite etc.. In sizes ranging from 2.5cm to 10cm (!!) across at 20.00, 40.00, 75.00, 125.00 and 200.00 each.

DALNEGORSKITE (IMA 2018-007)- Dalnegorsk, Primorskiy Kray, Russia
This NEW SPECIES occurs as pale beige, densely fibrous aggregates, typically intergrown with darker green pyroxene in the diopside-hedenbergite series. Formula: Ca5Mn, (Si3O9)2 - Triclinic, IMA # 2018-007). A new member of the bustamite group, named for the type locality. Rich but ugly stuff, sizes from 2cm to nearly 4cm across @ just 75.00 and 100.00 each.

DUNDASITE etc.- Adelaide Mine, Dundas, Tasmania
Excellent, white radiating micro needles of dundasite in tufted balls on limonitic matrix, the larger specimens occasionally with minor crocoite. Fine micro material, available as matrix specimens from 1cm to 4cm @ 7.50, 12.50, 20.00 and 35.00 each; a few major pieces with bright orange crocoite to 10cm up to 150.00 - inquire!

FLUORITE etc.- Milldam Mi, Great Hucklow,Derbyshire England
This small mine produced clear to purple fluorites, typically as small cubic crystals perched in vugs and on matrix, some color-zoned as well. These were collected circa 1995-1999, presented here as modest thumbnails, occasionally associated with calcite and/or barite. Rather nice under teh scope as well, sizes average 2.5-3cm @ just 12.50 each.

FRANZINITE- Case Collina, Pitigliano, Tuscany, Italy
A member of the cancrinite group, franzinite occurs as pearly, opaque white, platy crystalline aggregates up to several millimeters across scattered through a granular crystallized greenish vesuvianite matrix, occasionally with minor grossular as well. Type locality material. another unusual mineral from this prolific locality, in sizes from 2cm to 5cm @ 20.00, 35.00, and 50.00 each.

HEMATITE- Shabry, Ekaterinburg, Middle Urals, Russia
Uncommonly well-crystallized hematite, here as submetallic, relatively stout trigonal crystala without matrix, most averaging about 2.5cm across and atypical for this normally thin tabular mineral. Specimens are ex-A.E. Seaman Mineral Museum and are accompanied by their label at just 28.00 each. Unusual!

HIORTDALITE- Store Aroy, Langesundsfjorden, Norway
Old material, ex-Hatfield Goudey (goudeyite), here as small brownish crystals scattered in pale syenite matrix. Excellent old locality material, specimen sizes from about 2cm to nearly 4cm @ 15.00 and 25.00 and 35.00 each.

HYDROGLAUBERITE with HEMATITE- Arsenatnaya Fumerole, Kamchatka, Russia
Another uncommon mineral from this prolific area of the second scoria cone (Northern Breakthrough) of the Tolbachik volcano. The hydroglauberite occurs as tiny white spherules scattered among sparkling micro hematite on fragments of basaltic volcanic bombs. The first (and only!) reported occurrence of the mineral in Russia, just a few 2.5-3cm specimens are avalable @ 85.00 each. List alternates!

HYDROXYAPOPHYLLITE-(K)- Valenciana Mine, Guanajuato, Mexico
Excellent, well-formed transparent crystals to 0.5cm of this unusual apophyllite-group species richly scattered on slightly amethystine quartz matrix. Fine older material and difficult to obtain today, we have an attractive cabinet specimen with excellent coverage, size about 12x10x8 cm @ only 250.00. One only!

JANCHEVITE (IMA 2017-079)- Kombat Mine, Grootfontein District, Namibia
This NEW SPECIES occurs as minute, adamantine orange-red anhedral grains, sparsely scattered in Mn-oxide ore, typically associated with hausmannite and other phases. Formula: Pb7V5+(O8.5[]0.5)Cl2 - tetragonal, IMA #2017-079, the V-dominant analog of parkinsonite. Only two 3mm matrix samples available, portions of the type, @ 350.00 each. List alternates!

JOHACHIDOLITE- Pyant Gyi Mine, Mogok, (Burma) Myanmar
This rare species occurs here as golden, honey brown crystalline aggregates largely comprising matrix, recently discovered in the gem gravels at this, the second known locality for the species, occasionally with minor fluorescent sodalite. This rare borate has been confirmed by XRD, microprobe and Raman spectra as well, with a copy of XRD data supplied with each sample. Sizes range from about 5mm to 1.4cm @ 45.00, 75.00 and 150.00 each.

KENYAITE- Magadii Lake, Kenya
This complex sodium phosphate-silicate mineral is offered as light gray powdery fragments, typicaly associated with chert, magadiite and other evaporate minerals. Capsule with powdery aggregates @ 20.00, matrix pieces averaging 0.5 cm @ 35.00 each.

KILCHOANITE in HILLEBRANDITE- Fuka, Okayama Prefecture, Japan
Large masses of purple-gray spurrite with thin streamers and veins of hillebrandite conatining micro white inclusions of kilchoanite. Pods of gehlenite have also been found in this colorful and complex material, matrix sizes from 1.5cm to 7cm @ 15.00, 35.00, 65.00, 95.00 and 125.00 each.

LANGITE- Allihies Mine, County Cork, Ireland
Bright blue drusy crystals of langite nicely scattered on rock matrix, most showing some micro potential. Fine for the locality, one of the richest in the West Cork District which later supplied many of miners who toiled atButte, Montana in later years. Colorful samples, matrix sizes from 2.5cm to 5cm @ 15.00, 30.00 and 55.00 each.

MURDOCHITE- Mina Ojuela, Mapimi, Durango, Mexico
Micro black cubes and aggregates of murdochite richly scattered on limonitic matrix, occasionally with other secondary copper minerals. Old material, ex-F. Mecke Collection, sizes average about 5cm @ 40.00 each. Nice!

NAKAURIITE- Nakauri Mine, Shinshiro, Aichi Prefecture, Japan
Obviously from the type locality, moderate coverage of this compound copper mineral occurs as pale blue to bluish green thin crusts on serpentine rock. Moderately attractive material, somewhat lean but quite representative for nakauriite, in sizes from 1.5cm to 5cm @ 15.00, 25.00, 40.00 and 55.00 based on size and coverage.

PARABERZELIITE (IMA 2018-001)- Arsenatnaya Fumerole, Kamchatka, Russia
The description and approval of new minerals from the famous Tolbachik Volcano continue, and this one is tiny but quite attractive as glassy, pale sherry-colored monoclinic crystals and aggregates carefully mounted on adhesive disks. Formula: NaCa2Mg2(AsO4)3, monoclinic, IMA #2018-001, a new member of the alluaudite group and dimorph of berzeliite. Magnification will be needed to appreciate these delicately hued micros, and we have only a few of them available @ 165.00 each. Type locality, of course!

PREHENITE- Lower New St., Paterson, Passaic Co. New Jersey
A rather large, lenticular-shaped vug in Watchung basalt that extends over 18 cm in length (!!), exposing a rich, pale green botryoidal mass of prehenite that completely fills the opened pillow matrix. The locality was worked up until the mid-1930s, and this specimen is ex-Dr. G. Sensel, acquired in June, 1966. A handsome specmen, overall size about 22x7cm @ 125.00. One only.

PYRARGYRITE, POLYBASITE etc.- Mina Sirena, Guanajuato, Mexico
Selected from a large lot, we have a good number of grayish metallic pyrargyrite crystals and convoluted knobby aggregates comprising matrix, many showing interesting habits and occasionally associated with native silver or other silver minerals. Analytically confirmed, small but neat TN's that average 1cm to 1.5cm @ 25.00, 35.00 and 45.00 each, depending on quality.

PYROMORPHITE- Bunker Hill Mi, Kellogg, Shoshone Co., Idaho
This famous property operated sporadically from 1886 to 1994, producing a wide range of minerals and various colors of pyromorphite along the way. These samples were acquired circa 1960, long before the modern heyday of collectible specimens came to market. The pyromorphites are in typical, barrel shaped, elongated crystals to 3mm sacattered on rusty quartz/rock matrix, the crystal color a pale greyish green reminiscent of those supplied by the late Ted Morley in the 1950s-1960s when the property was worked by the Bunker Hill Co., prior to the Gulf Resources and Chemical Co. takeover. Decent coverage on these generally small specimens, matirx sizes from about 2.5cm to 4.5cm @ 5.00, 10.00 and 20.00 each, or as smaller samples in lots of five for micromounting @ 12.00 per lot of five. Old stuff!

QUARTZ- Little Devil's Workshop, Gaston Co., North Carolina
An old specimen from the Benjamin Ackerman Collection, originally labeled as "Devil's Works Iron Mine", presented here as a large but crude clear quartz crystal that measures about 12cm long by 6cm across, showing several sharp faces but with multiple areas of abrasion and a few areas of Mn/Fe oxide staining evident as well. The locality is now known as the Mountain Ore Bank Mine. The crystal weighs a little under 2 lbs and is no beauty, but its relatively large size and off-beat locality provide much interest as a result. Size is 12x6x7cm @ 55.00; one only!

QUARTZ with inclusions- Chaiyaphum, Kaset Sombum District, Thailand
An unusual specimen comprised of three major quartz crystals to 4cm intergrown to form a complex stacked group of transparent, weirdly modified habits, admittedly with detachment at the bottom and some damage on some of the complex terminations. Most interesting, however, is under the 'scope which discloses pointed spear-shaped needles of quartz(?) pointing into the core of the specimen, as well as numerous hollow areas, floaters and growth chevrons evident as well at 10x or better. There is mild limonitic staining within the group, also enhancing its appearance at modest magnifications, highlighting some of the staggered growth patterns and voids within the sample. An uncommon locality piece, originally obtained nearly 30 years ago from Mountain Minerals International and residing in the private collection of Scott Williams. Both labels accompany this 5.5x4x3.5cm group @ 65.00. One only!

RHABDOBORITE-(V) IMA #2017-108- Arsenatnaya Fumerole, Kamchatka, Russia
A new and extremely complex mineral from the second scoria cone of the Tolbachik Volcano, here as tiny groups of yellow to pale golden, acicular crystals typically perched on glassy micros of anhydrite, occasioaally with elongated coppery ludwigite, orange berzeliite and possibly other phases. Formula: Mg12(V5+, Mo6+, W6+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x}(x<1) - hexagonal, IMA # 2017-108 and isostructural with the W-dominant new mineral described below. Rich specimens, with excellent micro potential as well, specimen sizes available are either as TNs @ 200.00 each or a few larger, richer specmens to 4cm @ 325.00 each. List alternates!

RHABDOBORITE-(W) IMA #2017-109- Arsenatnaya Fumerole, Kamchatka, Russia
This new species is the tungsten-analog of rhabdoborite-(V) (see above), occurring here as pale beige acicular crystal groups and aggregates scattered on transparent anhydrite micros with berzeliite, ludwigite and possibly other phases. Formula:Mg12(W6+,V5+)1.5O6[{BO3]6-x[P,As)O4xF2-x}(x,1), hexagonal, IMA # 2017-109. Type locality, of course, with good micro potential as well. Size from TNs @ 175.00 to 4cm @ 300.00 each. List alternates!

STILBITE- Paterson, Passaic Co., New Jersey
From several old collections, we have a modest accumulation of typical New Jersey stilbite specimens from this famous locality. The crystals range from 5mm to 2.5cm, and typical zeolite associations may be present. Overall specimen sizes range from about 4cm to 8cm across, and all show good coverage @ just 15.00, 30.00 and 45.00 each.

TOPAZ- nr. Teofilo Otoni, Minas Gerais, Brazil
This is a MONSTER crystal of water-clear topaz, weighing about 6.5 pounds(!!!) and measuring about 12x12x7cm tall!! It was purchased on March 6, 1964 in Teofilo Otoni for gem material, and the specimen shows several excellent terminal faces, a strange "V-shaped" etched face, and a basal pinacoid cleavage, as well as the typical conchoidal fracture where detached from matrix. Expect some bruising on this HUGE gem crystal, a giant specimen, certainly the largets clear topaz we have ever had, offered at 2800.00.

TRIPHYLITE- Pribyslavice, Czech Republic
Massive brownish triphylite, here comprising much of the specimens, also associated with quartz, mica, feldspar and occasionally bluish vivianite, graftonite etc.. in these otherwise unattractive locality specimens collected in 1974. Sizes average about 5cm to 6cm across @ 25.00 and 30.00 each.

TSUMEBITE- Hard Luck Claims, San Bernadino Co. California
This interesting locality, commonly called the Blue Bell Mine, has produced more than 85 different species, many in good micro crystals. We have a small selection of tsumebite specimens from here, most as pleasing, glassy green micro aggregates scattered on matrix, typically with cerussite and a wide range of other associated species. Specimens range from about 2.5cm to 5cm across and are priced according to quality @ 10.00, 20.00 and 35.00 each. Cool stuff!

TUNELLITE- Jenifer Mine, Boron, Kern Co., California
Translucent tabular crystals of pearly tunellite, some with minor ulexite matrix from this famous locality. Very old material for this uncommon strontium-borate mineral, known only from California and Turkey. Specimen sizes range from 2cm individuals to 5cm matrix groups, priced at just 20.00, 30.00 and 45.00 each.

URANOPHANE on MONTROSEITE etc.- Opera Box Mine, Montrose Co., Colorado
Tiny, bright yellow balls of uranophane comprised of minute, radiating needles lightly scattered and perched on nearly black montroseite matrix, typically with other species such as rauvite, paramontroseite, coffinite and others. From the first locality outside of Utah to produce magnesiopascoite as well, material from this small operation was featured in our February, 2015 article in Mineral News. Only a few samples on hand, 2cm @ 15.00; 3.5-4cm @ 30.00; a few larger to 7cm @ 55.00 each. Most will have modest micro potential as well.

VANADINITE with CALCITE- San Carlos Mine, Manuel Benavides, Mexico
Old classic material from this Chihuahua locality, these acquired more than 50 years ago in the mid-1960's, showing excellent, bright orange, glassy micro crystals of vanadinite to 3mm tall, very richly scattered over transparent, colorless rhombs of calcite on rock matrix. We've spotted a few with hematite tips and occasionally other species, and these make colorful and attractive specimens as is, with really extraordinary micro potential if you care to break them up. Specimens range from about 2.5cm to nearly 6cm across @ just 8.00, 15.00 and 25.00

WAGNERITE in TRIPLITE- McMahons Quarry, Olary, S.A., Australia
This uncommon species occurs here as massive aggregates intergrown with dark brownish triplite comprising matrix. From an old find of many years ago, we have a few specimens only, sizes ranging from about 1cm to 3.5cm @ 15.00, 25.00 and 45.00 each.

WAIRAKITE- Tohi Mine, Izu, Shizuoka Prefecture Japan
This uncommon zeolite occurs here as translucent white to clear glassy aggregates scattered in vugs in matrix. Excellent locality material, but only a few samples available, sizes average about 3cm @ 55.00 each.

WAVELLITE- Crystal Baron Mine, nr. Crows, Arkansas
Collected in 1993 from this Saline Co. locality, these unusual wavellites show both an odd yellow color as well as a bright green SW-UV fluorescent response. Analytical work shows just wavellite, but these attractive botryoidal specimens also show trace amounts of strontium, manganese etc. that may be causing the fluorescent response. Attractive material nonetheless, sizes from 2.5cm to 5cm @ 10.00, 20.00 and 35.00 each. Interesting!

WAYLANDITE with BISMITE- Mumba, Kivu Province, Zaire
What were probably single crystals or solid masses are now well-rounded stream worn examples of yellowish bismite surrounding brownish-black masses of the rare Bi-Al-phosphate, waylandite, possibly with other Bi-phases present as well. Analyzed material, in sizes from 0.6 to 1.5 cm @ 25.00, 35.00 and 45.00 each.

ZUBKOVAITE (IMA #2018-008)- Arsenatnaya Fumerole, Kamchatka, Russia
Another NEW SPECIES in colorful micro aggregates from the Tolbachik Volcano, here as bright blue druses and botryoidal knobs on matrix, typically coated by water-clear anhydrite and often associated with the rare Na-Ca-Mg arsenate mineral johillerite in lilac-colored druses. Formula: Ca3Cu3(AsO4)4, monoclinic, IMA # 2018-008. The mineral is a new structural type, the first reported anhydrous Ca-Cu arsenate! Only a few specimens on hand, averaging about 1cm across, all with good micro potential and associations @ 200.00 each. List alternates!

FRANKLIN & STERLING HILL- -World's Greatest Mineral Deposit by Dr. Pe
The last of our stock, exclusively from the author: the revised HARDCOVER edition of the late Dr. Dunn's monumental work on the Franklin and Sterling Hill deposits. Over 750 pages in two volumes, handsomely bound in royal blue buckram, oversewn, with acid-free endpapers and gold-stamped on spine and cover, this set is a comprehensive treatment of the mineralogy and history of this prolific and complex deposit! Over 900 b/w illustrations and photographs fill this careful, descriptive, precise work that meticulously documents the diverse mineralogy of this famous NJ locality. Every serious collector and bibliophile should own this set, and we are the exclusive distributor for this limited printing. The two volume set is 195.00 plus 16.00 s/h (USA); overseas
customers: please inquire for shipping costs.

TOPAZ - Brazil
Some years ago, we purchased a substantial lot of Brazilian gemstones, and we are offering portions of the lode once again. These are mostly colorless. commonly called "white" topaz in a wide range of sizes and shapes, all faceted and of good commercial quality used in jewelry repair and small settings, typically valued at up to 4.00 a carat. Some will show minor inclusions, occasional abrasions etc., but the vast majority are eye-clean and attractive. To move these quickly, we are offering medium-sized lots of assorted cuts and shapes for less than 75 cents a carat, a special offer of 50 carats for just 35.00 per lot, averaging about 30 to 40 stones per lot. A steal!
Museums / Hong Kong, Hong Kong Geological Survey
« Last post by Frank de Wit on August 18, 2018, 11:14:22 AM »
Civil Engineering and Development Department
(formerly Hong Kong Geological Survey)

Geotechnical Engineering Offi ce (GEO)

Hong Kong UNESCO Global Geopark
Hong Kong Geology - A 400-Million Year Journey

101 Princess Margaret Road, Kowloon, Hong Kong

Also see their Memoirs https://www.strahlen.org/forum/index.php/topic,21485.0.html
Shops/dealers / Re: Purple-Sky-Minerals / David Hospital
« Last post by David Hospital on August 16, 2018, 12:25:48 PM »
Hi lovers and passionates of systematic minerals,

The new auction of systematic minerals is online at E-rocks /Purple Sky Minerals, have a look if you're interested:


Some outstanding rarities in this auction are:

Tapiaite & Joteite
Gerasimovskite & Ussingite
Tlapallite & Stützite
Mandarinoite & Ahlfeldite

...and many more UP TO 70 SPECIMENS !!

....so I highly recommend to have a look !
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