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Mixed Fine and Rare Minerals

Friday, 19 March 2021 07:00 PM

Introducing the "Mixed Fine and Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including adamite, austinite, beryl, bornite, elpidite, and fluorite and more from places like Mina Ojuela, Mapimi, Durango, Mexico, Gold Hill mine, Tooele Co., Utah, United States, Stak Nala, Gilgit, Skardu road, Northern Areas, Pakistan, Magma mine, Pinal Co., Arizona, United States, Alluaiv Mt., Lovozero Massif, Kola Peninsula, Russia, and Elmwood mine, Smith Co., Tennessee, United States.

Adamite

#55311
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Zn2AsO4(OH) 
Availability
Available
Price
$40.00
Size
7 x 5.5 x 3.5 cm - Sm Cabinet 
Tagged
arsenate  

Purple manganoan Adamite with crystals to 4mm accompanied by a bit of sugery green Austinite.


Adamite

Formula
Zn2AsO4(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Druse, Encrustations 
Cleavage
One Good 
Luster
Vitreous - Resinous 
Color
yellow, green, violet, pink, yellowish green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3.5 
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Austinite

#37655
Locality
Gold Hill mine, Tooele Co., Utah, United States 
Formula
CaZnAsO4(OH) 
Availability
Sold
Size
7 x 4.5 x 3 cm - Sm Cabinet 
Tagged
arsenate  

Light or even faint green sparkly groups of Austunite crystals to 3mm across in spongy limonitic matrix. The Gold Hill mine is mineralogically one of the more famous mines of the American West. Don't ever go to this mine without two spare tires in 100 degree heat.


Austinite

Formula
CaZnAsO4(OH) 
Crystal System
Orthorhombic 
Cleavage
Good, None, None 
Luster
Subadamantine 
Color
brown, colorless, green, yellowish white, white 
Streak
white 
Class
Orthorhombic - Disphenoidal 
Fracture
Brittle - Uneven 
Hardness
4-4.5 
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Beryl

var. aquamarine - #AH55375
Locality
Stak Nala, Gilgit, Skardu road, Northern Areas, Pakistan 
Formula
Be3Al2Si6O18 
Availability
Available
Price
$125.00
Size
3.5 x 3.5 x 3.5 cm - Miniature 
Tagged
beryllium , pegmatite mineral  

A terminated, very clear and gemmy aquamarine crystals with beveled edges to 3.5cm across.


Beryl

Formula
Be3Al2Si6O18 
Crystal System
Hexagonal 
Crystal Habit
Crystalline - Coarse, Prismatic, Columnar 
Cleavage
Imperfect, None, None 
Luster
Vitreous - Resinous 
Color
green, blue, yellow, colorless, pink 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
7.5-8 
Collection
Arnold G Hampson Collection
Mineralpedia
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Bornite

with Chalcopyrite - #AH55413
Locality
Magma mine, Pinal Co., Arizona, United States 
Formula
Cu5FeS4 
Availability
Sold
Size
6 x 5 x 4 cm - Sm Cabinet 
Tagged
sulfide , copper , ore specimen  

There are crude crystals of tarnish Bornite amonst shiny Chalcopyrite crystals to 1mm.


Bornite

Formula
Cu5FeS4 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Reniform, Granular 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
copper red, bronze brown, purple 
Streak
grayish black 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
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Elpidite

#PD55398
Locality
Alluaiv Mt., Lovozero Massif, Kola Peninsula, Russia 
Formula
Na2ZrSi6O15·3H2
Availability
Sold
Size
5.5 x 4.5 x 2.5 cm - Sm Cabinet 

The Elpidite on this specimen form divergent groups of white, acicular crystals to over 1cm. It is a zirconium silicate and is rather uncommon.


Elpidite

Formula
Na2ZrSi6O15·3H2
Crystal System
Orthorhombic 
Crystal Habit
Fibrous 
Cleavage
Perfect, Perfect, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, yellow brown, white, light red 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Brittle 
Hardness
Collection
Don Phillips Collection
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Fluorite

with Sphalerite - #55395
Locality
Elmwood mine, Smith Co., Tennessee, United States 
Formula
CaF2 
Availability
Sold
Size
11 x 10 x 4.5 cm - Cabinet 

Large cabinet specimen with one deep purple crystal of Fluorite to 2.7cm on deep red Sphalerite matrix.


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
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Mindat
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