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Mixed Minerals

Sunday, 12 December 2021 04:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including albite, azurite, bismuthinite, chlorargyrite, cuprite, and dravite and more from places like Bancroft, Ontario, Canada, Big Indian Copper mine, San Juan Co., Utah, United States, non-specified mine, Chaffee Co., Colorado, United States, Eagle Eye mine, La Paz Co., Arizona, United States, New Cornelia mine, Ajo dist., Pima Co., Arizona, United States, and Yinnietharra Station, Pilbara, Western Australia, Australia.

Albite

var. peristerite - #57188
Locality
Bancroft, Ontario, Canada 
Formula
NaAlSi3O8 
Availability
Available
Price
$60.00
Size
5 x 4 x 3.8 cm - Miniature 

Light brown good crystals to 2.6cm with a light blue play of colors at the right angles.


Albite

Formula
NaAlSi3O8 
Crystal System
Triclinic 
Crystal Habit
Blocky, Striated, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
white, gray, greenish gray, bluish green, gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Mineralpedia
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Azurite

#AH57200
Locality
Big Indian Copper mine, San Juan Co., Utah, United States 
Formula
Cu3(CO3)2(OH)2 
Availability
Available
Price
$35.00
Size
4.5 x 4 x 2 cm - Miniature 
Tagged
carbonate , copper  

Deep blue Azurite filling voids in sandstone matrix.


Azurite

Formula
Cu3(CO3)2(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Tabular, Prismatic, Stalactitic 
Cleavage
Perfect, Fair, None 
Luster
Vitreous (Glassy) 
Color
azure blue, blue, light blue, dark blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Arnold G Hampson Collection
Mineralpedia
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Previously Sold Azurite
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Bismuthinite

#57189
Locality
non-specified mine, Chaffee Co., Colorado, United States 
Formula
Bi2S3 
Availability
Sold
Size
4 x 4 x 1.8 cm - Miniature 
Tagged
sulfide  

Quartz rich in silvery Bismuthinite.


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

Chlorargyrite

with Plancheite & Wulfenite - #57177
Locality
Eagle Eye mine, La Paz Co., Arizona, United States 
Formula
AgCl 
Availability
Sold
Size
4.5 x 2.5 x 1.5 cm - Miniature 
Tagged
silver  

Grey, waxy Chlorargyite aggregate to 2mm across. It is associated with mint green Plancheite and yellow Wulfenite to 2mm. It is an interesting specimen with a lot going on.


Chlorargyrite

Formula
AgCl 
Crystal System
Isometric 
Crystal Habit
Massive, Columnar 
Cleavage
None, None, None 
Luster
Adamantine - Resinous 
Color
purplish gray, green, white, colorless 
Streak
white 
Class
Isometric - Hexoctahedral 
Fracture
Sectile 
Hardness
1-1.5 

Cuprite

var. chalcotrichite - #57105
Locality
New Cornelia mine, Ajo dist., Pima Co., Arizona, United States 
Formula
Cu1+2
Availability
Sold
Size
3 x 2.5 x 1.5 cm - Thumbnail 
Tagged
copper  

Thumbnail specimen with red acicular crystals.


Cuprite

Formula
Cu1+2
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Capillary 
Cleavage
Imperfect, None, None 
Luster
Adamantine 
Color
brown red, purple red, red, black 
Streak
brownish red 
Class
Isometric - Hexoctahedral 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Mineralpedia
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Dravite

#57101
Locality
Yinnietharra Station, Pilbara, Western Australia, Australia 
Formula
NaMg3Al6(BO3)3Si6O18(OH)4 
Availability
Available
Price
$50.00
Size
3.6 x 2.6 x 2.7 cm - Miniature 

A complete, doubly terminated, dark brown and lustrous Dravite crystal.


Dravite

Formula
NaMg3Al6(BO3)3Si6O18(OH)4 
Crystal System
Trigonal 
Crystal Habit
Massive, Columnar, Divergent 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Resinous 
Color
black, green, red, blue, white 
Streak
colorless 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Sub Conchoidal 
Hardness
7-7.5 
On Dakota Matrix
Previously Sold Dravite
On Dakota Matrix
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