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Mineralpedia Details for Gerstmannite

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Gerstmannite

Gerstmannite

Formula
Mn2+MgZnSiO4(OH)2 
Crystal System
Orthorhombic 
Cleavage
Good, None, None 
Luster
Vitreous - Adamantine 
Color
white, light pink 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
4.5 
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Gerstmannite from Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States

Gerstmannite
            from Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States
Special Info
Type & Only Locality

White crystal fragment to about 0.75mm on black paper mount.

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