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Phosphate

Buchwaldite

NaCa(PO₄)
Hardness3
Crystal systemOrthorhombic
ClassPhosphate

Buchwaldite

Buchwaldite is an IMA-recognized mineral species in the phosphate class, with the chemical formula NaCa(PO₄).

It crystallizes in the orthorhombic crystal system (space group Pmn2_1). It is a member of the Aphthitalite structural group.

Key properties: Mohs hardness 3; specific gravity 3.21; optically biaxial.

IMA symbol Bwa, IMA status: approved, named in 1975.

Occurs as inclusions in troilite nodules in an iron meteorite.

It is found associated with Troilite, chromite, other unidentified phosphates.

The mineral was named to honor Dr. Vagn Fabius Buchwald (1929–), Technical University of Denmark, Lyngby, Denmark, for his contributions to the study of iron meteorites.

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 B minerals or help write this entry.