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Wickmanite on Quartz

#50773
SOLD
Wickmanite from San Martín mine, Sombrerete, Zacatecas, Mexico - 50773
Wickmanite from San Martín mine, Sombrerete, Zacatecas, Mexico - 50773

Wickmanite on Quartz

#50773
Availability
Sold
Size
6.7 x 2.3 x 2 cm - Sm Cabinet 
Formula
Mn2+Sn4+(OH)6 (RRUFF)
Locality
San Martín mine, Sombrerete, Zacatecas, Mexico
Tagged
tin

By far the richest specimen of those posted. Between the green arrows are hundreds of lemon yellow, cubic crystals to around 0.3 to 0.4mm. Excellent rare specimen. These were identified by Dr. Peter Megaw.

Wickmanite

Formula
Mn2+Sn4+(OH)6 
Crystal System
Isometric 
Crystal Habit
Octahedral Crystals 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
yellow, orange brown, yellow orange, colorless 
Streak
white 
Class
Isometric - Hexoctahedral 
Hardness
3-4 

Data courtesy of Webmineral.

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