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Kristiansenite & Stilbite

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SER156871

Kristiansenite & Stilbite

Description Tabs

Description
Locality: 
Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 5.5 × 4 cm
Description

A pointed, colourless kristiansenite crystal on albite with numerous stilbite crystals

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

Stilbite

Synonym Of: 

Stilbite-Ca

Formula: 
NaCa4[Al9Si27O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0

Stilbite-Na

Formula: 
(Na,Ca,K)6-7[Al8Si28O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0
Hardness: 
3.5 - 4
Colour: 
White
Streak: 
White