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Rare & Mixed Minerals

Sunday, 31 July 2022 05:00 PM

Introducing the "Rare & Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including aragonite, bismuthinite, bredigite, calcite, copper, and duftite and more from places like Styrian Erzberg, Eisenerz, Styria, Austria, Victoria mine, Elko Co., Nevada, United States, Camphouse, Ardnamurchan, Argyllshire, Scotland, Santa Eulalia, Chihuahua, Mexico, Quincy mine, Houghton Co., Michigan, United States, and Brandy Gill mine, Caldbeck Fells, Cumbria, England.

Aragonite

var. flos ferri - #RS58916
Locality
Styrian Erzberg, Eisenerz, Styria, Austria 
Formula
CaCO3 
Availability
Sold
Size
6.5 x 5 x 3.5 cm - Sm Cabinet 
Tagged
carbonate  

Snow white worm-like Aragonite, variety called "flos ferri".


Aragonite

Formula
CaCO3 
Crystal System
Orthorhombic 
Crystal Habit
Pseudo Hexagonal, Columnar, Fibrous 
Cleavage
Distinct, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, white, gray, yellowish white, reddish white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
3.5-4 
Collection
RC Stamberg Collection
Mineralpedia
View Aragonite
On Dakota Matrix
Previously Sold Aragonite
On Dakota Matrix
Other Available Aragonite
WebMineral
View Aragonite
Mindat
View Aragonite

Bismuthinite

in Quartz - #58912
Locality
Victoria mine, Elko Co., Nevada, United States 
Formula
Bi2S3 
Availability
Sold
Size
6 x 5 x 5 cm - Sm Cabinet 
Tagged
sulfide  

A 2.5 and a 1.8cm silvery bladed Bismuthinite crystals in Quartz with Pyrite. The smaller crystal is partial.


Bismuthinite

Formula
Bi2S3 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Massive - Lamellar, Granular 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
gray, silver white, tin white 
Streak
gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Sectile 
Hardness
SOLD
Bredigite - BW58081
Bredigite - BW58081

Bredigite

with Spurrite - #BW58081
Locality
Camphouse, Ardnamurchan, Argyllshire, Scotland 
Formula
CaCa13Mg2(SiO4)8 
Availability
Sold
Size
2.5 x 1.5 x 1.3 cm - Thumbnail 

A thin layer of white Bredigite on Spurrite.


Bredigite

Formula
CaCa13Mg2(SiO4)8 
Crystal System
Orthorhombic 
Cleavage
Distinct, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, gray 
Streak
white 
Class
Orthorhombic - Pyramidal 
Hardness
Collection
Bill Wilson Collection

Calcite

#RS58915
Locality
Santa Eulalia, Chihuahua, Mexico 
Formula
CaCO3 
Availability
Available
Price
$55.00
Size
6 x 4.5 x 4 cm - Sm Cabinet 
Tagged
carbonate  

A rather aestheitc Calcite group with scalenohedral crystals to 3cm.


Calcite

Formula
CaCO3 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Stalactitic, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
colorless, white, pink, yellow, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
RC Stamberg Collection
Mineralpedia
View Calcite
On Dakota Matrix
Previously Sold Calcite
On Dakota Matrix
Other Available Calcite
WebMineral
View Calcite
Mindat
View Calcite

Copper

in Calcite - #RS58914
Locality
Quincy mine, Houghton Co., Michigan, United States 
Formula
Cu 
Availability
Available
Price
$195.00
Size
7 x 4.5 x 4 cm - Sm Cabinet 
Tagged
native element  

A great specimen loaded with Copper in Calcite crystals. The Calcite crystals are weirdly deformed and reach 1cm. On the backside (last three photos) show Copper and Epidote crystals.


Copper

Formula
Cu 
Crystal System
Isometric 
Crystal Habit
Nodular, Arborescent 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, copper red, light pink, red 
Streak
rose 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Collection
RC Stamberg Collection
Mineralpedia
View Copper
On Dakota Matrix
Previously Sold Copper
On Dakota Matrix
Other Available Copper
WebMineral
View Copper
Mindat
View Copper

Duftite

#RS58922
Locality
Brandy Gill mine, Caldbeck Fells, Cumbria, England 
Formula
PbCuAsO4(OH) 
Availability
Available
Price
$45.00
Size
3.5 x 2 x 2 cm - Miniature 
Tagged
arsenate , copper  

Apple green Duftite crusts.


Duftite

Formula
PbCuAsO4(OH) 
Collection
RC Stamberg Collection
Mineralpedia
View Duftite
On Dakota Matrix
Previously Sold Duftite
On Dakota Matrix
Other Available Duftite
WebMineral
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Mindat
View Duftite

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