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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 bredigite, calcite, copper, duftite, gold, and lepidolite and more from places like Camphouse, Ardnamurchan, Argyllshire, Scotland, Santa Eulalia, Chihuahua, Mexico, Quincy mine, Houghton Co., Michigan, United States, Brandy Gill mine, Caldbeck Fells, Cumbria, England, Harvard mine, Jamestown, Tuolumne Co., California, United States, and Harding mine, Taos Co., New Mexico, United States.

Bredigite

with Spurrite - #BW58081
Locality
Camphouse, Ardnamurchan, Argyllshire, Scotland 
Formula
CaCa13Mg2(SiO4)8 
Availability
Available
Price
$45.00
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
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Previously Sold Calcite
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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
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Mindat
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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
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On Dakota Matrix
Previously Sold Duftite
On Dakota Matrix
Other Available Duftite
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Mindat
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Gold

#58807
Locality
Harvard mine, Jamestown, Tuolumne Co., California, United States 
Formula
Au 
Availability
Available
Price
$175.00
Size
3 x 1.3 x 1.8 cm - Thumbnail 
Tagged
native element  

A large Gold leaf to 1cm x 8mm on white Quartz.


Gold

Formula
Au 
Crystal System
Isometric 
Crystal Habit
Arborescent, Platy, Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
yellow, pale yellow, orange, yellow white, reddish white 
Streak
yellow 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Mineralpedia
View Goldmanite
On Dakota Matrix
Previously Sold Gold
On Dakota Matrix
Other Available Gold
WebMineral
View Gold
Mindat
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Lepidolite

with Spodumene - #AH58896
Locality
Harding mine, Taos Co., New Mexico, United States 
Formula
K(Li,Al)3(Si,Al)4O10(F,OH)2 
Availability
Available
Price
$55.00
Size
7.5 x 5 x 5 cm - Sm Cabinet 

Bold purple Lepidolite associated with another lithium mineral, Spodumene.


Lepidolite

Formula
K(Li,Al)3(Si,Al)4O10(F,OH)2 
Crystal System
Monoclinic 
Crystal Habit
Platy, Foliated, Massive 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
colorless, gray white, lilac, yellowish, white 
Streak
white 
Class
Monoclinic 
Fracture
Uneven 
Hardness
2.5-3 
Collection
Arnold G Hampson Collection

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