Suanite

minerals

kotoite

szaibelyite

Formula: Mg2B2O5
Anhydrous borate
Specific gravity: 2.91
Hardness: 5½
Streak: White
Colour: White
Solubility: Soluble with difficulty in cold dilute hydrochloric acid (AM 40.941)
Common impurities:
Environments

Metamorphic environments

At the type locality, the Hol Kol Mine, Suan-gun, North Hwanghae Province, North Korea, suanite occurs in a contact metasomatic hydrothermal boron deposit in skarn (Webmin, HOM). Associated minerals include calcite, szaibélyite, kotoite, sakhaite, ludwigite, forsterite, apatite, spinel and clinohumite (AM 40.941, HOM).

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