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Yttrialite-(Y) & Tengerite-(Y)

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SCH31367

Yttrialite-(Y) & Tengerite-(Y)

Description Tabs

Description
Locality: 
Holmtjärn, Stora Tuna, Borlänge, Dalarna County, Sweden
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 3 × 5.1 cm
Description

Massive dark brown Yttrialite-Y in feldspar with white powdery Tengerite-Y.

Excellent, rich specimen for both species.

Ex. Hans Peukert specimen.

Mineral Data
What's on the rock

Yttrialite-(Y)

Formula: 
(Y,Th)2Si2O7
Strunz: 
9.BC.05
Hardness: 
0.0
Type Locality: 
Baringer Hill (Barringer Hill), Bluffton, Llano Co., Texas, USA

Tengerite-(Y)

Formula: 
Y2(CO3)3·2-3H2O
Strunz: 
5.CC.10
Hardness: 
0.0
Colour: 
White
Streak: 
white
Type Locality: 
Ytterby, Resarö, Vaxholm, Uppland, Sweden
schani

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