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Penriceite

A valid IMA mineral species
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04917970017752528805522.jpg
Penriceite, etc.

Penrice marble quarry, Penrice, Barossa Council, South Australia, Australia
04917970017752528805522.jpg
Penriceite, etc.

Penrice marble quarry, Penrice, Barossa Council, South Australia, Australia
04917970017752528805522.jpg
Penriceite, etc.

Penrice marble quarry, Penrice, Barossa Council, South Australia, Australia
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About PenriceiteHide

Formula:
[Mg(H2O)6][Na(H2O)2Al3(PO4)2F6] Β· H2O
simplified formula: NaMgAl3(PO4)2F6(H2O)9
Specific Gravity:
2.12 (Calculated)
Crystal System:
Monoclinic
Isostructural with:
Aldermanite
The F analogue of aldermanite. Co-described with the related elliottite. Also related to tomsquarryite.
Compare also fluorcarmoite-(BaNa).

The structure is formed via periodic unit-cell-scale twinning of the structure of elliottite.


Unique Identifiers