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Mixed Minerals

Friday, 06 April 2018 08:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including quartz, and switzerite and more from places like Little Three mine, San Diego Co., California, United States, and Iron Knob, Eyre Peninsula, South Australia, Australia.

Quartz

with tourmaline - #48767
Locality
Little Three mine, San Diego Co., California, United States 
Formula
SiO2 
Availability
Available
Price
$175.00
Size
11 x 4 x 3.5 cm - Cabinet 
Tagged
pegmatite mineral  

Ex. London collection. A doubly terminated Quartz crystal with slight smoky color and included tourmaline. It is from the Hercules Dike.


Quartz

Formula
SiO2 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Druse, Crystalline - Fine 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, violet, gray, yellow 
Streak
white 
Class
Trigonal - Trapezohedral 
Fracture
Conchoidal 
Hardness
Collection
Dr. David London Collection
Mineralpedia
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Previously Sold Quartz
On Dakota Matrix
Other Available Quartz
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Switzerite

#BN48683
Locality
Iron Knob, Eyre Peninsula, South Australia, Australia 
Formula
Mn2+3(PO4)2·7H2
Availability
Available
Price
$50.00
Size
5.5 x 3.5 x 3.5 cm - Sm Cabinet 
Tagged
phosphate  

Silvery white thin platy crystals of Switzerite to 1mm. Very rich.


Switzerite

Formula
Mn2+3(PO4)2·7H2
Crystal System
Monoclinic 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
brown, pink 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
Collection
Dr. Buford Nichols Collection

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