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Mixed Minerals

Friday, 05 April 2019 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including anglesite, and sklodowskite and more from places like Greystones quarry, Lezant, Cornwall, England, and Animas mine, Francisco Portillo, Santa Eulalia dist., Chihuahua, Mexico.

Anglesite

in Galena - #50376
Locality
Greystones quarry, Lezant, Cornwall, England 
Formula
PbSO4 
Availability
Sold
Size
6 x 5.5 x 3 cm - Sm Cabinet 

Colorless, prismatic crystals of Anglesite to 6mm in vuggy Galena matrix. The specimen comes with three old labels, the notable is an original Barstow specimen from his private collection stating it was collected by Barstow in 1960.


Anglesite

Formula
PbSO4 
Crystal System
Orthorhombic 
Crystal Habit
Granular, Stalactitic 
Cleavage
Good, Distinct, None 
Luster
Adamantine 
Color
blue, colorless, green, gray, yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
2.5-3 
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Sklodowskite

in Gypsum - #50625
Locality
Animas mine, Francisco Portillo, Santa Eulalia dist., Chihuahua, Mexico 
Formula
Mg(UO2)2(SiO3OH)2·6H2
Availability
Available
Price
$175.00
Size
5.5 x 4.5 x 2 cm - Sm Cabinet 

Yellow Sklodowskite included in Gypsum.


Sklodowskite

Formula
Mg(UO2)2(SiO3OH)2·6H2
Crystal System
Monoclinic 
Crystal Habit
Prismatic 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
greenish yellow, light yellow 
Streak
yellow white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
2-3 

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