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Heulandite

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SPR638580

Heulandite

Description Tabs

Description
Locality: 
Touch Hills, Stirling, Scotland, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.5 × 3 cm
Weight: 
87.00gr
Description

A cavity in basalt matrix is richly lined with brick-red heulandite-Ca crystals. Strongly-coloured zeolite minerals are uncommon in Scotland

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
Rare-Earth-Crystals

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Payment must be made with 7 days of purchase and items will not be shipped until payment is received.

Full refund if you are not completely satisfied with any purchase and item is returned within 30 days. Buyer to pay return postage costs.

Please ensure you understand specimen size before purchase as I do sell material from micro to cabinet size.