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0 item @ $0.00  

Mixed Minerals

Sunday, 18 April 2021 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including arsenopyrite, cerussite, fluorapatite, and wulfenite and more from places like Santa Barbara, near Parral, Chihuahua, Mexico, Broken Hill, New South Wales, Australia, Medina pegmatite field, Pedra Azul dist., Minas Gerais, Brazil, and Stephenson-Bennett mine, Dona Ana Co., New Mexico, United States.

Arsenopyrite

#WR55582
Locality
Santa Barbara, near Parral, Chihuahua, Mexico 
Formula
FeAsS 
Availability
Available
Price
$75.00
Size
9 x 7.5 x 4 cm - Sm Cabinet 
Tagged
sulfide  

Perfect and sharp silvery crystals of Arsenopyrite crystals to 7mm throughout matrix.


Arsenopyrite

Formula
FeAsS 
Crystal System
Monoclinic 
Crystal Habit
Striated, Euhedral Crystals, Prismatic 
Cleavage
one distinct 
Luster
Metallic 
Color
tin white, light steel gray 
Streak
black 
Geological Setting
Widespread. Most commonly found in medium to high temperature veins.  
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
5.5 to 6 
Collection
Willard L. Roberts Collection

Cerussite

#55450
Locality
Broken Hill, New South Wales, Australia 
Formula
PbCO3 
Availability
Available
Price
$125.00
Size
10 x 4 x 4.5 cm - Cabinet 
Tagged
carbonate  

White Cerussite crystals to 3cm with good showy character. The last photo shows good twinning. 


Cerussite

Formula
PbCO3 
Crystal System
Orthorhombic 
Crystal Habit
Reticulate, Massive - Granular, Crystalline - Coarse 
Cleavage
Distinct, Distinct, None 
Luster
Adamantine 
Color
colorless, white, gray, blue, green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3-3.5 
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Fluorapatite

with Muscovite & Albite - #BN55585
Locality
Medina pegmatite field, Pedra Azul dist., Minas Gerais, Brazil 
Formula
Ca5(PO4)3
Availability
Available
Price
$60.00
Size
5 x 4.5 x 4 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

Faint yellow waterclear and complex Fluorapatite crystals to 3mm on Muscovite. The Fluorapatite resides on a conical shaped Muscovite crystal. It is 2.5cm long tapering from 3mm at one end to 1.6cm at the large end. It is seated just perfectly on the white tAlbite.


Fluorapatite

Formula
Ca5(PO4)3
Crystal System
Hexagonal 
Crystal Habit
Massive - Granular, Euhedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Resinous 
Color
blue, brown, colorless, violet, green 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Dr. Buford Nichols Collection

Wulfenite

with Anglesite - #AH52567
Locality
Stephenson-Bennett mine, Dona Ana Co., New Mexico, United States 
Formula
PbMoO4 
Availability
Available
Price
$40.00
Size
8.5 x 5 x 5 cm - Sm Cabinet 

Micro yellow Wulfenite crystals to 2mm in many pockets with a matrix of mostly grey to colorless Anglesite.


Wulfenite

Formula
PbMoO4 
Crystal System
Tetragonal 
Crystal Habit
Tabular, Pyramidal 
Cleavage
Imperfect, None, None 
Luster
Resinous - Greasy 
Color
orange yellow, waxy yellow, yellowish gray, olive green, brown 
Streak
yellowish white 
Class
Tetragonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
Mineralpedia
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