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0 item @ $0.00  

Mixed Minerals

Friday, 05 April 2019 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including spangolite, stephanite, stibnite, topaz, and tremolite and more from places like Blanchard mine, Socorro Co., New Mexico, United States, Himmelfahrt mine, Freiberg dist., Erzgebirge, Saxony, Germany, Antimony Bluff Mine, Gillham, Sevier Co., Arkansas, United States, Elmore Co., Idaho, United States, Yuno, Shigar Valley, Baltistan, Northern Areas, Pakistan, and Canteras, Cordoba, Argentina.

Spangolite

#44793
Locality
Blanchard mine, Socorro Co., New Mexico, United States 
Formula
Cu6AlSO4(OH)12Cl·3H2
Availability
Sold
Size
6 x 3.5 x 3 cm - Sm Cabinet 
Tagged
copper  

Tiny 1mm bluish green crystals of Spangolite. Uncommon at this mine.


Spangolite

Formula
Cu6AlSO4(OH)12Cl·3H2
Crystal System
Trigonal 
Crystal Habit
Prismatic, Platy, Tabular 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous (Glassy) 
Color
blue green, green, dark green, emerald green 
Streak
light green 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Conchoidal 
Hardness
2.5-3 
Collection
Don Phillips Collection

Stephanite

#50390
Locality
Himmelfahrt mine, Freiberg dist., Erzgebirge, Saxony, Germany 
Formula
Ag5SbS4 
Availability
Sold
Size
1.3 x 1.2 x 1 cm - Thumbnail 
Tagged
sulfide , silver  
Special Info
Antique Specimen 

A sweet little specimen with several excellent crystals, the largest being 4mm. Comes with an old handwritten, inked label (see prov. tab).


Stephanite

Formula
Ag5SbS4 
Crystal System
Orthorhombic 
Crystal Habit
Pseudo Hexagonal, Tabular, Massive 
Cleavage
Imperfect, Poor, None 
Luster
Metallic 
Color
lead gray, black 
Streak
black 
Class
Orthorhombic - Pyramidal 
Fracture
Sub Conchoidal 
Hardness
2-2.5 
Special Info
Antique Specimen
SOLD
Stibnite - 50602
Stibnite - 50602

Stibnite

with Stibiconite - #50602
Locality
Antimony Bluff Mine, Gillham, Sevier Co., Arkansas, United States 
Formula
Sb2S3 
Availability
Sold
Size
8 x 4 x 2.5 cm - Sm Cabinet 
Tagged
sulfide  

Solid, massive Stibnite with long band of Stibnite crystals with outer rind of Stibiconite.


Stibnite

Formula
Sb2S3 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Striated, Granular 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
lead gray, bluish lead gray, steel gray, black 
Streak
blackish gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
Collection
Dr. Buford Nichols Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Stibnite
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Topaz

#50632
Locality
Elmore Co., Idaho, United States 
Formula
Al2SiO4F2 
Availability
Sold
Size
2.5 x 1.5 x 1.0 cm - Thumbnail 

Colorless Topaz with complex termination.


Topaz

Formula
Al2SiO4F2 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Coarse, Prismatic, Massive - Granular 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale blue, yellow, yellowish brown, red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
Collection
Chris van Laer Collection
Mineralpedia
View Topaz
On Dakota Matrix
Previously Sold Topaz
On Dakota Matrix
Other Available Topaz
WebMineral
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Mindat
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Topaz

#50642
Locality
Yuno, Shigar Valley, Baltistan, Northern Areas, Pakistan 
Formula
Al2SiO4F2 
Availability
Sold
Size
3.5 x 3 x 2.5 cm - Miniature 

Sherry colored, very gemmy, sharp, complex and lustrous Topaz crystal to 3.3cm on a matrix of cleavelandite.


Topaz

Formula
Al2SiO4F2 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Coarse, Prismatic, Massive - Granular 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale blue, yellow, yellowish brown, red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
Mineralpedia
View Topaz
On Dakota Matrix
Previously Sold Topaz
On Dakota Matrix
Other Available Topaz
WebMineral
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Mindat
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SOLD
Tremolite - 50629
Tremolite - 50629

Tremolite

#50629
Locality
Canteras, Cordoba, Argentina 
Formula
□Ca2Mg5Si8O22(OH)2 
Availability
Sold
Size
10 x 8 x 3 cm - Cabinet 

Strange, interesting, feather-light, white Tremolite. This is a variety called "mountain cork".


Tremolite

Formula
[box]Ca2Mg5Si8O22(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Columnar, Massive - Fibrous, Massive - Granular 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous - Pearly 
Color
brown, colorless, gray, white, light green 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Sub Conchoidal 
Hardness
5-6 
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Tremolite
On Dakota Matrix
Previously Sold Tremolite
On Dakota Matrix
Other Available Tremolite
WebMineral
View Tremolite
Mindat
View Tremolite

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