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Todorokite

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CHP926085

Todorokite

Classic Locality

Description Tabs

Description
Locality: 
Road SP 108, Portoscuso, Carbonia-Iglesias Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.7 × 2 cm
Description

specimen with a beautiful aggregate of dark brown (black) needles of todorokite on matrix.

c. 4665

Mineral Data
What's on the rock

Todorokite

Formula: 
(Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)6O12·3H2O
Strunz: 
4.DK.10
Hardness: 
1.5
Type Locality: 
Todoroki mine, Yoichi, Shiribeshi Province, Hokkaido, Japan

Seller Information

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