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0 item @ $0.00  

Haiweeite

#38522

Haiweeite

#38522
Availability
Sold
Size
4 x 4 x 3 cm - Miniature 
Formula
Ca(UO2)2Si5O12(OH)2·3H2O (RRUFF)
Locality
Teofilo Otoni, Minas Gerais, Southeast Region, Brazil

Bright yellow sprays and tufts of Haiweeite from 3 to 6mm across, which is quite large for this occurence. with some orange yellow Uranophane. This is an outstanding specimen with good coverage on the face and along the sides. There are funny transparent colorless, worm-like crystals with green tips on this specimen. I have no idea what these are and if you buy it and analyze it, please let me know the result.

Haiweeite

Formula
Ca(UO2)2Si5O12(OH)2·3H2
Crystal System
Orthorhombic 
Crystal Habit
Microscopic Crystals, Spherical, Aggregates 
Cleavage
Good, None, None 
Luster
Pearly 
Color
greenish yellow, light yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
3.5 

Data courtesy of Webmineral.

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