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Carbonate

Tengerite-(Y)

Y₂(CO₃)₃·2-3H₂O
Crystal systemOrthorhombic
ClassCarbonate
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Tengerite-(Y) specimen

Tengerite-(Y) Locality: Pyörönmaa pegmatite, Kangasala, Western and Inner Finland Region, Finland Dimensions: 65 mm x 30 mm x 20 mm Field of View: 6 mm Largest Crystal Size: 1 mm White spherules of bladed crystals. Collected 2013. Analysis and identfication by Pavel M. Kartashov. — Photo: Jyrki Autio · Public domain

Tengerite-(Y)

Tengerite-(Y) is an IMA-recognized mineral species in the carbonate class, with the chemical formula Y₂(CO₃)₃·2-3H₂O.

It crystallizes in the orthorhombic crystal system (space group Bb2_1m). It is a member of the Tengerite structural group.

Key properties: specific gravity 3.11; Dull, chalky luster.

IMA symbol Ten-Y, IMA status: approved, named in 1838.

An alteration coating on yttrium-bearing minerals.

It is found associated with Gadolinite-(Y), lokkaite-(Y), kimuraite-(Y), bastnäsite-(Ce), lanthanite, synchysite, calcite, quartz.

The mineral was named to honor C. Tenger, Swedish chemist who studied the mineral.

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 T minerals or help write this entry.