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Magnesio-hastingsite & Maghemite

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SER937739

Magnesio-hastingsite & Maghemite

Description Tabs

Description
Locality: 
Montenero Quarry, Onano, Viterbo Province, Lazio, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.6 × 1.2 cm
Description

some vugs filled with hundreds golden urchins of magnesiohastingsite on and with brown balls of maghemite ; self  collected on 2010

Mineral Data
What's on the rock

Magnesio-hastingsite

Formula: 
NaCa2(Mg4Fe3+)Si6Al2O22(OH)2
Group Parent: 
Hastingsite Root Name
Strunz: 
8/F.10-130
Crystal System: 
Monoclinic
Hardness: 
5 - 6
Colour: 
Green to brownish-green
Type Locality: 
Canadian National Railway tunnel, Mont Royal, Montréal, Québec, Canada

Maghemite

Formula: 
Fe3+2O3
Strunz: 
4.BB.15
Hardness: 
6.0
Streak: 
Brown
Type Locality: 
Bushveld Complex, South Africa