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Phillipsite Gismondine Lévyne & Thomsonite

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Phillipsite Gismondine Lévyne & Thomsonite

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Description
Locality: 
Dunseverick, County Antrim, Northern Ireland, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 3.9 × 3.5 cm
Weight: 
103.00gr
Description

A very interesting specimen to enjoy viewing under the loupe or scope displaying a lovely suite of zeolite minerals including milky white phillipsite crystals with an unusual curved habit, white di-pyramidal gismondine crystals, colourless platy levyne crystals and light grey bladed thomsonte crystals.

Mineral Data
What's on the rock

Phillipsite

Synonym Of: 

Phillipsite-Ca

Formula: 
(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32 . 12H2O
Strunz: 
9.GC.10
Hardness: 
4.0 - 5.0

Phillipsite-K

Formula: 
(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Strunz: 
9.GC.10
Hardness: 
4.0 - 5.0

Phillipsite-Na

Formula: 
(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32]·12H2O
Strunz: 
9.GC.10
Hardness: 
4.0 - 5.0
Group Parent: 
Zeolite Group

Gismondine

Synonym Of: 

Gismondine-Ca

Formula: 
CaAl2Si2O8·4H2O
Strunz: 
9.GC.05
Hardness: 
0.0
Group Parent: 
Zeolite Group

Lévyne

Strunz: 
77.1.2.8
Hardness: 
4 - 4½
Colour: 
White
Streak: 
White

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

Seller Information

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Seller's terms and conditions

Thank you for viewing my auctions. It goes without saying that maintaining high standards in both specimen quality and customer service are extremely important to me. If for any reason you are not happy with any aspect of your transaction then please let me know as soon as possible, ideally within 1 week of receiving your specimen. I will happily do all in my power to resolve the situation to your satisfaction. If your specimen is damaged upon delivery simply send me some photos to verify this and I'll provide you with a full refund or a replacement specimen, whichever you prefer. 

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