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Rare & Cabinet Minerals

Sunday, 05 March 2023 06:00 PM

Introducing the "Rare & Cabinet Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including boleite, ericlaxmanite, fluorite, johachidolite, morenosite, and mountkeithite and more from places like San Francisco mine, Sierra Gorda dist., Antofagasta, Chile, Tolbachik Volcano, Kamchatka, Russia, Xianghualing mine, Chenzhou pref., Hunan, China, Mogok, Sagaing dist, Mandalay Division, Myanmar, Jachymov, Erzgegirge, Bohemia, Czech Republic, and Mount Keith mine, Mt. Keith, Western Austrialia, Australia.

SOLD

Boleite

#BAC61164

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Provenance
Resources

Locality: San Francisco mine, Sierra Gorda dist., Antofagasta, Chile
Formula: KAg₉Pb₂₆Cu₂₄Cl₆₂(OH)₄₈
Availability: Sold
Size: 2.5 x 2 x 2 cm - Thumbnail
Tagged: copper

Tiny little blue cubes less than 0.4mm.

Boleite

Formula: KAg₉Pb₂₆Cu₂₄Cl₆₂(OH)₄₈
Crystal System: Isometric
Crystal Habit: Pseudo Cubic
Cleavage: Perfect, Good, None
Luster: Vitreous - Pearly
Color: indigo blue, light blue
Streak: light green
Class: Isometric - Hexoctahedral
Fracture: Uneven
Hardness: 3-3.5

Collection: William & Anne Cook Collection

Mineralpedia: View Boleite
On Dakota Matrix: Previously Sold Boleite
On Dakota Matrix: Other Available Boleite
WebMineral: View Boleite
Mindat: View Boleite

Ericlaxmanite

#57761

$145.00 - Available
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Locality: Tolbachik Volcano, Kamchatka, Russia
Formula: Cu₄O(AsO₄)₂
Availability: Available
Price: $145.00
Size: 3 x 2.5 x 2 cm - Thumbnail
Tagged: arsenate , copper
Special Info: Type Locality
Special Info: Author's Material

This specimen is from Dr. Igor Pekov's study material.

Virtually all of the bright green crystalline areas on this specimen is Ericlaxmanite. Very few of these specimens were collected by the team of geologists from Russia including Dmitriy Belakovskiy and Igor Pekov. The team took fascinating videos while collecting on and in the scoria cone vents under extremely hot and toxic conditions. The remoteness and altitude alone are enough of an obstacle to keep most serious collectors away from this place. Type material is deposited at the Fersman Museum in Moscow and the new mineral was published in Mineralogical Magazine 77, 2695-2709.

Ericlaxmanite

Special Info: Type Locality
Special Info: Author's Material

Mineralpedia: View Ericlaxmanite
On Dakota Matrix: Previously Sold Ericlaxmanite
On Dakota Matrix: Other Available Ericlaxmanite
WebMineral: View Ericlaxmanite
Mindat: View Ericlaxmanite

Fluorite

#59651

$95.00 - Available
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Locality: Xianghualing mine, Chenzhou pref., Hunan, China
Formula: CaF₂
Availability: Available
Price: $95.00
Size: 10 x 9 x 5 cm - Cabinet

This piece shows a whole lot better in-person than online. It is a wonderful specimen with ice-like luster and aqua color. It is nicely translucent with a neat network of internal cleavage lines. Each crystal has beveled edges, which carry a nice frosted finish. The largest crystal is to almost 6cm and attached to this crystal are six smaller crystals. No damage, sweet piece.

Fluorite

Formula: CaF₂
Crystal System: Isometric
Crystal Habit: Crystalline - Coarse, Massive - Granular, Disseminated
Cleavage: Three perfect, octahedral cleavages.
Luster: Vitreous (Glassy)
Color: purple, clear, yellow, green, red, blue
Streak: white
Geological Setting: Occurs in a wide range of geologic environments including low temperature Missississippi Valley lead-zinc deposits, hydrothermal gold deposits, Alpine cleft metamorphic environments
Class: Isometric - Hexoctahedral
Fracture: Uneven
Hardness: 4