Hydroxylchondrodite
Hydroxylchondrodite is an IMA-recognized mineral species in the silicate class, with the chemical formula Mg₅(SiO₄)₂(OH)₂.
It crystallizes in the monoclinic crystal system (space group P2_1/c). It is a member of the Humite structural group.
Key properties: Mohs hardness 6; specific gravity 3.21; Pale yellow streak; Vitreous luster; optically biaxial.
IMA symbol Hchn, IMA status: approved, named in 2010.
Found in the contact zone between magnesium skarn and marble.
It is found associated with Calcite, clinochlore, dolomite, tremolite, diopside, andradite-grossular, magnetite, perovskite, hydroxylclinohumite, titanite.
Reflects the mineral’s identity as the OH (hydroxyl) analogue of chondrodite.
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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