Struvite-(K)
Struvite-(K) is an IMA-recognized mineral species in the phosphate class, with the chemical formula KMg(PO₄)·6H₂O.
It crystallizes in the orthorhombic crystal system (space group Pmn2_1). It is a member of the Struvite structural group.
Key properties: specific gravity 1.864; White streak; Vitreous luster; optically biaxial.
IMA symbol Suv-K, IMA status: approved, named in 2003.
Of either late hydrothermal or secondary origin (Switzerland); an alteration product of animal bones and circulating fluids (Austria).
It is found associated with Rathite, dolomite (Switzerland); newberyite (Austria).
As the potassium equivalent of struvite.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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