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Neotocite

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ESM589815

Neotocite

Description Tabs

Description
Locality: 
Gambatesa Mine, Reppia, Genova, Liguria, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 5.5 × 3.5 cm
Description

Lustrous brown botryoidal neotocite crystals on matrix

Mineral Data
What's on the rock

Neotocite

Formula: 
(Mn,Fe,Mg)SiO3·H2O
Strunz: 
9.ED.20
Crystal System: 
Amorphous
Hardness: 
3.0 - 4.0
Colour: 
Brown Bronze or Black
Streak: 
Dark brown to black
Type Locality: 
Erik Ers Mine, Torsåker, Hofors, Gästrikland, Sweden