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Phosphate

Moraskoite

Na₂Mg(PO₄)F
Hardness4–5
Crystal systemOrthorhombic
ClassPhosphate

Moraskoite

Moraskoite is an IMA-recognized mineral species in the phosphate class, with the chemical formula Na₂Mg(PO₄)F.

It crystallizes in the orthorhombic crystal system (space group Pbcn). It is a member of the Moraskoite structural group.

Key properties: Mohs hardness 4–5; specific gravity 2.925; White streak; Vitreous luster.

IMA symbol Mok, IMA status: approved, named in 2013.

Found as a primary mineral in an IAB-MG iron meteorite, in a graphite-troilite inclusion enclosed in a kamacite-taenite matrix.

It is found associated with Chlorapatite, buchwaldite, brianite, merrillite, chromite, enstatite, kosmochlor, kosmochlor-augite, olivine, albite, orthoclase, quartz, cohenite.

The name refers to the host meteorite and Morasko village, near the location of the original discovery.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more M minerals or help write this entry.