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Mixed Minerals

Friday, 31 January 2020 10:00 AM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including chabazite, fluorite, sphalerite, and uranopilite and more from places like Solenice, Stredocesky Kraj, Bohemia, Czech Republic, Rock Candy mine, Greenwood, British Columbia, Canada, Lengenbach quarry, Binn Valley, Wallis, Switzerland, and Big Chief mine, Navajo Co., Arizona, United States.

Chabazite

#AH52257
Locality
Solenice, Stredocesky Kraj, Bohemia, Czech Republic 
Formula
Ca(Si4Al2)O12·6H2
Availability
Available
Price
$25.00
Size
4.5 x 3.5 x 1.3 cm - Miniature 

White pseudo cubic crystals to 2.5mm.


Chabazite

Collection
Arnold G Hampson Collection

Fluorite

#AH52156
Locality
Rock Candy mine, Greenwood, British Columbia, Canada 
Formula
CaF2 
Availability
Available
Price
$35.00
Size
6 x 4.5 x 3 cm - Sm Cabinet 

The color is much better in person with green throughout, not zoned like the photos show. The luster is subdued by tiny growth hillocks all over the octahedral faces. 


Fluorite

Formula
CaF2 
Crystal System
Isometric 
Crystal Habit
Crystalline - Coarse, Massive - Granular, Disseminated 
Cleavage
Three perfect, octahedral cleavages. 
Luster
Vitreous (Glassy) 
Color
purple, clear, yellow, green, red, blue 
Streak
white 
Geological Setting
Occurs in a wide range of geologic environments including low temperature Missississippi Valley lead-zinc deposits, hydrothermal gold deposits, Alpine cleft metamorphic environments  
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection
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Sphalerite

#AH52180
Locality
Lengenbach quarry, Binn Valley, Wallis, Switzerland 
Formula
ZnS 
Availability
Available
Price
$45.00
Size
5 x 4.5 x 3.5 cm - Miniature 
Tagged
sulfide  

A fantastic, gemmy, golden 7mm Sphalerite crystal with euhedral forms nicely perched on marble matrix with other sulfides. 


Sphalerite

Formula
ZnS 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Granular, Colloform 
Cleavage
Perfect, Perfect, Perfect 
Luster
Resinous - Greasy 
Color
brown, yellow, red, green, black 
Streak
brownish white 
Class
Isometric - Hextetrahedral 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Arnold G Hampson Collection

Uranopilite

#AH52175
Locality
Big Chief mine, Navajo Co., Arizona, United States 
Formula
(UO2)6SO4O2(OH)6·14H2
Availability
Sold
Size
3 x 2 x 2 cm - Thumbnail 

Bright yellow pulverulant Uranopilite.


Uranopilite

Formula
(UO2)6SO4O2(OH)6·14H2
Crystal System
Triclinic 
Crystal Habit
Encrustations, Reniform 
Cleavage
Perfect, None, None 
Luster
Silky 
Color
lemon, straw yellow 
Class
Triclinic - Pinacoidal 
Hardness
Collection
Arnold G Hampson Collection

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