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Heulandite

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PQM1003581

Heulandite

Classic Locality

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Description
Locality: 
Tourmalet Pass, Barèges, Occitanie, France
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 2.5 × 1.8 cm
Description

Many perfetc crystals on matrix.

Mineral Data
What's on the rock

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

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

I offer you samples of minerals from my discoveries in the field and various transactions.

Shipments are carefully packaged and protectively wrapped to prevent damage in transit.Micromounts are always sent in a box ( 25x25x22 mm) and placed in a bubble envelope. The prices depend on the size of the sample: Below 3cm, they are ine buble envelope and shipped at the letter rate. The price includes material, shipping costs, paypal fees and customs taxes for international. Above 3cm, they are sent in a box and shipped in COLLISSIMO. The prices depend on the weight and refer to the current prices. I systematically apply discounts on shipping costs for several items.

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