Shakhdaraite-(Y)
Shakhdaraite-(Y) is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula ScYNb₂O₈.
It crystallizes in the monoclinic crystal system (space group P2/c). It is a member of the Samarskite structural group.
Key properties: Mohs hardness 5; specific gravity 4.24; Brown streak; Vitreous semi-metallic luster.
IMA symbol Skd-Y, IMA status: approved, named in 2020.
Found in weakly zoned, miarolitic granitic pegmatite that cuts garnet-biotite gneiss.
It is found associated with Quartz, albite, pyrochlore-microlite, fersmite, bertrandite, jarosite.
The name refers to the Shakhdara River valley where the studied material was collected. Suffix indicates the dominant REE.
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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