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Mixed Minerals

Friday, 03 July 2020 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including descloizite, pyromorphite, stibnite, and vanadinite and more from places like Whale Mine, Goodsprings dist., Clark Co., Nevada, United States, Pfingstwiese mine, Bad Ems, Rhineland-Palatinate, Germany, Kremnitz, Žiar nad Hronom dist., Banská Bystrica Region, Slovakia, and Touissit dist., Oujda-Angad prov., Oriental, Morocco.

Descloizite

(cuprian) - #WR53655
Locality
Whale Mine, Goodsprings dist., Clark Co., Nevada, United States 
Formula
PbZnVO4(OH) 
Availability
Available
Price
$45.00
Size
6 x 3.5 x 3.5 cm - Sm Cabinet 
Tagged
vanadium  

Dark, almost black to yellowish-green black, excellent micro crystals.


Descloizite

Formula
PbZnVO4(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Plumose, Tabular, Encrustations 
Cleavage
None, None, None 
Luster
Greasy (Oily) 
Color
dark brownish black, dark reddish brown, orange red, reddish brown, black 
Streak
light brownish green 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3.5 
Collection
Willard L. Roberts Collection

Pyromorphite

#WR53652
Locality
Pfingstwiese mine, Bad Ems, Rhineland-Palatinate, Germany 
Formula
Pb5(PO4)3Cl 
Availability
Available
Price
$65.00
Size
5 x 4 x 3.5 cm - Miniature 
Tagged
phosphate  

Dark green large prismatic crystals to 1cm. It's well worn specimen and obviously far from pristine. This is a locality specimen, one of which you will not see on the market.


Pyromorphite

Formula
Pb5(PO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Crystals short to long prismatic, acicular, often hoppered terminations, rarely tabular to equant; radiating to branching groups, tapering to a point. Commonly rounded, globular, reniform, botryoidal. 
Cleavage
On {1011}, interrupted 
Luster
Resinous to subadamantine 
Color
Dark grass-green, green, yellow, yellow-orange, reddish orange, yellow-brown, brown, tan, grayish, may be colorless 
Streak
White 
Geological Setting
A secondary mineral in the oxidized zone of lead deposits 
Class
Hexagonal, 6/m - Dipyramidal 
Fracture
Uneven to subconchoidal 
Hardness
3.5–4 
Collection
Willard L. Roberts Collection

Stibnite

#WR53672
Locality
Kremnitz, Žiar nad Hronom dist., Banská Bystrica Region, Slovakia 
Formula
Sb2S3 
Availability
Available
Price
$60.00
Size
4 x 3.5 x 3 cm - Miniature 
Tagged
sulfide  

Needle Stibnite is a random, flashy group of crystals. 


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
Willard L. Roberts Collection
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Vanadinite

#WR53666
Locality
Touissit dist., Oujda-Angad prov., Oriental, Morocco 
Formula
Pb5(VO4)3Cl 
Availability
Available
Price
$275.00
Size
6 x 5 x 3 cm - Sm Cabinet 
Tagged
vanadium  

HUGE crystals of creamy brown Vanadinite to 1.5cm with some 1cm terminations. Excellent specimen, very impressive!


Vanadinite

Formula
Pb5(VO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Globular, Prismatic, Nodular 
Cleavage
None, None, None 
Luster
Adamantine 
Color
brown, brownish yellow, brown red, colorless, yellow 
Streak
brownish yellow 
Class
Hexagonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Willard L. Roberts Collection

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