Ilirneyite is a rare tellurite mineral with the formula Mg0.5[ZnMn3+(TeO3)3]•4.5H2O.
It was discovered at the Sentyabr'skoe deposit (of silver and gold) in the Ilirney Range, Western Chukotka, Russia.
[2] Ilirneyite is a trivalent-manganese-analogue of zemannite.
It is also a zinc- and manganese-analogue of keystoneite and kinichilite.
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