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Bazzite Bertrandite & Gugiaite

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SER751258

Bazzite Bertrandite & Gugiaite

Type Locality

Description Tabs

Description
Locality: 
Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2.5 × 2.4 cm
Description

some light blue prisms of bazzite on quartz from the type locality with a colourless blade of bertrandite hosting tiny white gugiaite crystals

Mineral Data
What's on the rock

Bazzite

Formula: 
Be3Sc2(Si6O18)
Strunz: 
9.CJ.05
Crystal System: 
Hexagonal
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Seula mine (ex Montecatini quarry), Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Bertrandite

Formula: 
Be4(Si2O7)(OH)2
Strunz: 
9.BD.05
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 7.0
Type Locality: 
Petit-Port, Nantes, Loire-Atlantique, Pays de Loire, France

Gugiaite

Formula: 
Ca2Be(Si2O7)
Strunz: 
9.BB.10
Crystal System: 
Tetragonal
Hardness: 
5.0
Streak: 
White
Type Locality: 
Gujia village, Tangqiao, Zhangjiagang Co., Suzhou Prefecture, Jiangsu Province, China