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Ferrierite-Na & Heulandite

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PJM207354

Ferrierite-Na & Heulandite

Description Tabs

Description
Locality: 
Red Bluff, Phillip Island, Bass Coast Shire, Victoria, Australia
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.6 × 2 cm
Description

 Off white to cream coloured sprays of ferrierite with yellowish heulandite crystals in a basaltic matrx

Mineral Data
What's on the rock

Ferrierite-Na

Formula: 
(Na2,K2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72]·18H2O
Strunz: 
9.GD.50
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Type Locality: 
Roadcuts, Altoona, Wahkiakum Co., Washington, USA

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
Earthstones Australia

Seller Information

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