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Tengerite-(Y) & Lokkaite-(Y)

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JYJ972237

Tengerite-(Y) & Lokkaite-(Y)

Description Tabs

Description
Locality: 
Høgetveit Feldspar Quarry, Evje og Hornnes, Agder, Norway
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.6 × 2.4 cm
Description

White tengerite-(Y) with lokkaite-(Y) and minor brown tombarthite-(Y) with quartz.

Rare mineral. 

 

Mineral Data
What's on the rock

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

Lokkaite-(Y)

Formula: 
Ca(Y,Gd,Nd,Dy)4(CO3)7·9H2O
Strunz: 
5.CC.15
Crystal System: 
Orthorhombic
Hardness: 
0.0
Streak: 
white
Type Locality: 
Pyörönmaa pegmatite, Kangasala, Western and Inner Finland Region, Finland