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Picrotephroite
A variety of Tephroite
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Formula:
(Mn,Mg)2[SiO4]
Name:
The name introduced by Dana E.S. in 1868 for intermediate members of Tephroite-Forsterite series.
Tephroite with MgO content up to 18.11 mas.% (in samples from Pajsberg, Sweden).
Unique Identifiers
Mindat ID:
10735 (as Picrotephroite)
3913 (as Tephroite)
3913 (as Tephroite)
Long-form identifier:
mindat:1:1:10735:4 (as Picrotephroite)
mindat:1:1:3913:6 (as Tephroite)
mindat:1:1:3913:6 (as Tephroite)
IMA Classification of Picrotephroite
'Grandfathered' (first described prior to 1959)
Physical Properties of Picrotephroite
Fracture:
Conchoidal
Chemistry of Picrotephroite
Mindat Formula:
(Mn,Mg)2[SiO4]
Element Weights:
Elements listed:
Other Language Names for Picrotephroite
German:Picrotephroit
Spanish:Picrotephroita
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Picrotephroite
mindat.org URL:
https://www.mindat.org/min-10735.html
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References for Picrotephroite
Localities for Picrotephroite
Showing 3 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Japan | |
| Lee (1955) |
Sweden | |
| Nysten et al. (1999) |
| Pavel M. Kartashov analytical data 2021 |
