Mineralpedia Details for Jahnsite-(MnMnMn)
Jahnsite-(MnMnMn)
- Formula
- Mn2+Mn2+Mn2+2Fe3+2(PO4)4(OH)2ยท8H2O
- Crystal System
- Monoclinic
- Cleavage
- None, None, None
- Luster
- Vitreous - Adamantine
- Color
- brown, purplish brown, yellow, yellow orange
- Streak
- white
- Class
- Monoclinic - Prismatic
- Hardness
- 4
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Jahnsite-(MnMnMn) from Linopolis, Divino das Larajeiras, Minas Gerais, Brazil
A rare member of the Jahnsite group of which there is five members. This specimen contains reddish brown plates in phosphate matrix.
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