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Thomsonite & Todorokite

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CSW970201

Thomsonite & Todorokite

Ex A Castleton Collection - L541
Classic Locality

Description Tabs

Description
Locality: 
Punta del Aguila, Playa Blanca, Yaiza, Lanzarote, Canary Islands, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.4 × 3.4 cm
Weight: 
51.00gr
Description

Basalt matrix with amydales displaying an attractive lining of burnt orange coloured, bladed thomsonite crystals with the unusual association of black elongated todorokite crystals. E5

Mineral Data
What's on the rock

Thomsonite

Synonym Of: 

Thomsonite-Ca

Formula: 
NaCa2[Al5Si5O20]·6H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 5.5

Thomsonite-Sr

Formula: 
Na(Sr,Ca)2[Al5Si5O20]·7H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 0.0

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

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