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Kristiansenite & Kainosite-(Y)

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SER129676

Kristiansenite & Kainosite-(Y)

Description Tabs

Description
Locality: 
Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 4.5 × 3 cm
Description

Five (or more) tiny, colourless kristiansenite crystals on albite with minor apatite and, in another vug, a group of lustrous, orange-pink , kainosite-y crystals on muscovite. I never saw this combination in Baveno quarries.

Mineral Data
What's on the rock

Kristiansenite

Formula: 
Ca2ScSn(Si2O7)(Si2O6OH)
Strunz: 
9.BC.30
Hardness: 
5.5 - 6.0
Streak: 
white
Type Locality: 
Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway

Kainosite-(Y)

Formula: 
Ca2(Y,Ce)2(Si4O12)(CO3)·H2O
Strunz: 
9.CF.10
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 6.0
Type Locality: 
Igletjødn feldspar quarry (Igletjern), Hæstad, Hidra (Hitterø), Flekkefjord, Vest-Agder, Norway