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0 item @ $0.00  

Wickmanite on Quartz

#43714

Wickmanite on Quartz

#43714
Availability
Sold
Size
7 x 3.5 x 2.5 cm - Sm Cabinet 
Formula
Mn2+Sn4+(OH)6 (RRUFF)
Locality
San Martín mine, Sombrerete, Zacatecas, Mexico
Tagged
tin

A group of Quartz crystals with an overgrowth of chlorite(?) and tiny yellow Wickmanite crystals! As you look around the specimen you will see numerous crystals of Wickmanite, a rare tin hydroxide found in around 15 or so worlwide localities. Wickmanite occurs in diverse geological environments including tin load deposits , sulfide deposits (Potosi), pegmatites (Tanco, Foote), rhyolites (Thomas Range). It occurs at Tsumeb and Langban.

The Quartz has an inner phantom of amethyst. There are also numerous colorless Fluorite cubes and Calcite crystals.

New IMA

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.

Special Info
New IMA

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