Metadelrioite
Metadelrioite is an IMA-recognized mineral species in the vanadate class, with the chemical formula SrCa(VO₃)₂(OH)₂.
It crystallizes in the triclinic crystal system.
Key properties: Mohs hardness 2; specific gravity 4.3; Vitreous to pearly luster; optically biaxial.
IMA symbol Mdlr, IMA status: approved, named in 1967.
An efflorescence on sandstone of the Salt Wash member of the Jurassic Morrison Formation in association with a U–V deposit.
It is found associated with Delrioite, rossite, metarossite, quartz.
The name refers to its relation to delrioite and its lesser H2O content.
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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