Calcioursilite
Calcioursilite is an IMA-recognized mineral species in the silicate class, with the chemical formula Ca₄(UO₂)₄(Si₂O₅)₅(OH)₆·15H₂O.
It crystallizes in the orthorhombic crystal system. It is a member of the Ursilite structural group.
IMA symbol Caur, grandfathered status — known before the IMA’s founding, named in 1957.
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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