The open encyclopedia of minerals
GlossaryCite the database
Mineralogist.org
Minerals A–ZSearchCollectionsBrowse by PropertyIdentify a SpecimenCompare MineralsLocalities MapGlossaryContribute Search the Database →
Oxides & Hydroxide

Priscillagrewite-(Y)

YCa₂Zr₂Al₃O₁₂
Hardness7–7.5
Crystal systemCubic
ClassOxides & Hydroxide
←PrevPringleiteNextPrismatine→

Priscillagrewite-(Y)

Priscillagrewite-(Y) is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula YCa₂Zr₂Al₃O₁₂.

It crystallizes in the cubic crystal system (space group Ia-3d). It is a member of the Garnet structural group.

Key properties: Mohs hardness 7–7.5; specific gravity 4.48; Vitreous luster.

IMA symbol Pgr-Y, IMA status: approved, named in 2020.

Formed by pyrometamorphism in a fluorapatite layer (metaphosphorite) hosted by varicolored spurrite marble.

It is found associated with Spurrite, fluorapatite, minerals of the brownmillerite-srebrodolskite series, fluormayenite, lakargiite, baghdadite, hematite, sphalerite, zincite.

The mineral was named to honor Priscilla Croswell Perkins Grew, (b. 1940), Professor Emerita, Department of Earth and Atmospheric Sciences.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more P minerals or help write this entry.