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Hydrohetaerolite with Calcite

#BM44085

Hydrohetaerolite with Calcite

#BM44085
Availability
Sold
Size
4.5 x 4 x 1 cm - Miniature 
Formula
Zn2Mn3+4O8·H2O (RRUFF)
Locality
Precaución mine, Cartagena, Murcia, Spain

Steely greyish blue acicular crystals throughout matrix exposed on the surface as uneven bubbly crusts.

Hydrohetaerolite

Formula
Zn2Mn3+4O8·H2
Crystal System
Tetragonal 
Crystal Habit
Radial, Botryoidal, Massive 
Cleavage
Good, None, None 
Luster
Sub Metallic 
Color
brownish black, dark brown 
Streak
dark brown 
Class
Tetragonal - Ditetragonal Dipyramidal 
Hardness
5-6 

Data courtesy of Webmineral.

Collection
McConlogue Collection

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