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0 item @ $0.00  

Mixed Minerals

Thursday, 07 February 2019 08:00 AM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including astrophyllite, datolite, and teallite and more from places like Khibiny Massif, Kola Peninsula, Russia, Freiberg dist., Erzgebirge, Saxony, Germany, and San José mine, Oruro City, Oruro Dept., Bolivia.

Astrophyllite

#DP50212
Locality
Khibiny Massif, Kola Peninsula, Russia 
Formula
K2NaFe2+7Ti2(Si4O12)2O2(OH)4
Availability
Available
Price
$50.00
Size
6 x 3.5 x 3 cm - Sm Cabinet 

Coppery red long bladed crystals to over 1cm in syenite matrix.


Astrophyllite

Formula
K2NaFe2+7Ti2(Si4O12)2O2(OH)4
Crystal System
Triclinic 
Crystal Habit
Bladed, Stellate, Crystalline - Fine 
Cleavage
Perfect, None, None 
Luster
Adamantine - Pearly 
Color
brown, brownish red, bronze yellow, gold yellow 
Streak
yellowish brown 
Class
Triclinic - Pedial 
Fracture
Brittle 
Hardness
3-3.5 
Collection
Don Phillips Collection

Datolite

with Calcite - #50182
Locality
Freiberg dist., Erzgebirge, Saxony, Germany 
Formula
CaBSiO4(OH) 
Availability
Available
Price
$95.00
Size
7 x 5 x 2 cm - Sm Cabinet 

Colorless to yellow crystals of Datolite (?) to 1.2cm with discoidal Calcite.


Datolite

Formula
CaBSiO4(OH) 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Granular, Porcelainous 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, yellow, white, light green 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
5.5 
Collection
Don Phillips Collection
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Teallite

with Sphalerite - #RW50213
Locality
San José mine, Oruro City, Oruro Dept., Bolivia 
Formula
PbSnS2 
Availability
Sold
Size
5 x 4 x 2 cm - Miniature 
Tagged
ore mineral , sulfide , tin  

Large, brilliant, platy crystals to 1.5cm with Sphalerite.


Teallite

Formula
PbSnS2 
Crystal System
Orthorhombic 
Crystal Habit
Micaceous 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
lead gray, grayish black, iron gray 
Streak
black 
Class
Orthorhombic - Dipyramidal 
Fracture
Elastic 
Hardness
1.5-2 
Collection
Robert J. Waidler Collection
Mineralpedia
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Mindat
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