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0 item @ $0.00  

Alstonite with Fluorite

#PD36877

Alstonite with Fluorite

#PD36877
Availability
Sold
Size
2.5 x 2 x 1.5 cm - Thumbnail 
Formula
BaCa(CO3)2 (RRUFF)
Locality
Rosiclare, Hardin Co., Illinois, United States
Tagged
carbonate

Thumbnail size specimen of very rare Alstonite as sharp white, rice-shaped crystals to 2mm. On the side of this specimen is a vug with a yellow Fluorite crystal and thousands of colorless, perfectly terminated Alstonite crystals.

Alstonite

Formula
BaCa(CO3)2 
Crystal System
Triclinic 
Crystal Habit
Euhedral Crystals, Pseudo Hexagonal 
Cleavage
Imperfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, gray, white, pink 
Streak
white 
Class
Triclinic 
Fracture
Uneven 
Hardness
4-4.5 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Alstonite
On Dakota Matrix
Other Available Alstonite
WebMineral
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Mindat
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