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Dyssnite

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Formula:
CaMn3Mn(Si5O15)
Colour:
Brownish black
Lustre:
Dull, Earthy
Hardness:
5 - 5½
Specific Gravity:
3.67
Name:
Named in 1838 by Franz von Kobell from the Greek δυσμουζ suggesting the dull luster of the mineral. The publication merely provided a name for the mineral previously chemically analyzed by Thomson (1828).
A variety of Rhodonite

Dull brownish black alteration of rhodonite containing both higher valance manganese and iron.


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Physical Properties of DyssniteHide

Dull, Earthy
Colour:
Brownish black
Hardness:
5 - 5½ on Mohs scale
Comment:
"may be scratched by a nail"
Density:
3.67 g/cm3 (Measured)    

Chemical Properties of DyssniteHide

Formula:
CaMn3Mn(Si5O15)

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for DyssniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Thomson, Thomas and Torrey, John (1828) 4. Ferro-silicate of Manganese, Chemical Examination of Some Minerals, Chiefly from America, Annals of the Lyceum of Natural History of New-York, v. 3, p. 28-30.
von Kobell, Franz (1838) Grundzüge der Mineralogie: zum Gebrauche bey Vorlesungen, sowie zum Selbststudium Entworfen, Johann Leonard Schrag, Nürnberg, p. 328.

Internet Links for DyssniteHide

Mineral and/or Locality  
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