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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.

Boleite

#BAC61164
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
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Mindat
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Ericlaxmanite

#57761
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

Fluorite

#59651
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
Mineralpedia
View Fluorite
On Dakota Matrix
Previously Sold Fluorite
On Dakota Matrix
Other Available Fluorite
WebMineral
View Fluorite
Mindat
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Johachidolite

with Sodalite - #61042
Locality
Mogok, Sagaing dist, Mandalay Division, Myanmar 
Formula
CaAlB3O7 
Availability
Available
Price
$125.00
Size
3.5 x 2 x 2 cm - Miniature 

A very good lilac Johachidolite to 7x10mm crystal with white Sodalite, variety hackmanite. 


Johachidolite

Formula
CaAlB3O7 
Crystal System
Orthorhombic 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
7.5 

Morenosite

#BAC61170
Locality
Jachymov, Erzgegirge, Bohemia, Czech Republic 
Formula
NiSO4·7H2
Availability
Sold
Size
3 x 2.5 x 1 cm - Thumbnail 
Tagged
nickel  

Light bluish green fibrous crystals.


Morenosite

Formula
NiSO4·7H2
Crystal System
Orthorhombic 
Crystal Habit
Stalactitic, Massive, Acicular 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
apple green, greenish white 
Streak
white 
Class
Orthorhombic - Disphenoidal 
Fracture
Conchoidal 
Hardness
2-2.5 
Collection
William & Anne Cook Collection

Mountkeithite

#BW59504
Locality
Mount Keith mine, Mt. Keith, Western Austrialia, Australia 
Formula
Mg11Fe3+3(SO4)3.5(OH)24·11H2
Availability
Sold
Size
6 x 3.5 x 3 cm - Sm Cabinet 
Special Info
Type Locality 

Purple masses.


Mountkeithite

Formula
Mg11Fe3+3(SO4)3.5(OH)24·11H2
Crystal System
Hexagonal 
Crystal Habit
Flakes, Granular, Rosette 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
white, light pink 
Streak
white 
Class
Hexagonal 
Hardness
Collection
Bill Wilson Collection
Special Info
Type Locality

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