Allactite
SOLD
Allactite
- Sold
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- Availability
- Sold
- Size
- 6 x 4 x 3 cm - Sm Cabinet
- Formula
- Mn2+7(AsO4)2(OH)8 (RRUFF)
- Locality
- Långban, Filipstad, Värmland, Sweden
- Tagged
- arsenate
Excellent specimen of this rare manganese arsenate found in only a handful of worldwide localities including of course Franklin. There are exceptional crystals on this specimen some showing good terminations and prismatic faces. The whole blackened side I believe is Allactite with a bit of manganese crust. Originally from the Scalisi Collection.
Allactite
- Formula
- Mn2+7(AsO4)2(OH)8
- Crystal System
- Monoclinic
- Cleavage
- Good, None, None
- Luster
- Vitreous - Greasy
- Color
- brown red, greenish brown, purple red, pink
- Class
- Monoclinic - Prismatic
- Hardness
- 4.5
Data courtesy of Webmineral.
- Mineralpedia
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- On Dakota Matrix
- Previously Sold Allactite
- On Dakota Matrix
- Other Available Allactite
- WebMineral
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- Mindat
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