Minjiangite
Minjiangite is an IMA-recognized mineral species in the phosphate class, with the chemical formula BaBe₂(PO₄)₂.
It crystallizes in the hexagonal crystal system (space group P6/mmm). It is a member of the Dmisteinbergite structural group.
Key properties: Mohs hardness 6; specific gravity 3.49; Vitreous luster; optically uniaxial.
IMA symbol Mjg, IMA status: approved, named in 2013.
Found in fractures cutting montebrasite, as a late hydrothermal secondary mineral in a Be-rich, zoned pegmatite.
It is found associated with Montebrasite, quartz, muscovite, hydroxylapatite, palermoite.
The name refers to the Minjiang River, located near the Nanping pegmatite.
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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