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Phillipsite Gismondine & Thomsonite

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CSW133838

Phillipsite Gismondine & Thomsonite

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Description Tabs

Description
Locality: 
Dunserverick, Bushmills, County Antrim, Northern Ireland, United Kingdom
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.5 × 3.8 × 2.7 cm
Description

Basalt matrix showing amygdales filled with a nice suite of zeolite minerals including unusual white to clear, curved phillipsite crystals, white, di-pyramidal gismondine crystals and bladed thomsonite crystals. There are also transparent levyne crystals, many of which show the classic offretite - erionite over-growth.

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

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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