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Yugawaralite & Heulandite

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CHP1037627

Yugawaralite & Heulandite

Classic Locality

Description Tabs

Description
Locality: 
Crastu Muradu Quarry, Osilo, Sassari Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3.2 × 1.6 cm
Description

specimen with some beautiful colourless crystals of yugawaralite with associate very good cream colour crystals of heulandite on matrix.

c. 7904

Mineral Data
What's on the rock

Yugawaralite

Formula: 
CaAl2Si6O16·4H2O
Strunz: 
9.GB.15
Hardness: 
4.5
Streak: 
White
Type Locality: 
Yugawara Hot Spring, Yugawara, Kanagawa Prefecture, Kanto Region, Honshu Island, Japan

Heulandite

Synonym Of: 

Heulandite-Ba

Formula: 
(Ba,Ca,K,Na,Sr)5Al9Si27O72·22H2O
Strunz: 
9.GE.05
Hardness: 
3.5

Heulandite-Ca

Formula: 
(Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.5 - 4.0

Heulandite-K

Formula: 
(K,Na,Ca)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.0 - 3.5

Heulandite-Na

Formula: 
(Na,Ca)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.0 - 3.5

Heulandite-Sr

Formula: 
(Sr,Na,Ca)2-3Al3(Al,Si)2Si13O36·12H2O
Strunz: 
9.GE.05
Hardness: 
3.0 - 3.5
Hardness: 
3 - 3.5
Colour: 
White
Streak: 
White

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Start 05 May 18:00
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Shipping Information

Postage Area Price
Italy
10
Europe
12
World
14

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