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Gmelinite Saponite & Analcime

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CSW138530

Gmelinite Saponite & Analcime

Self collected in July 2007
Type Locality

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Description
Locality: 
Little Deerpark Quarry, Glenarm, County Antrim, Northern Ireland, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 5 × 2 cm
Description

Basalt matrix with lots of small amygdales filled with a very nice suite of zeolite minerals including orange and clear gmelinite crystals, transparent analcime crystals, some of which show a very nice caramel/ yellow colouration due to underlying aggregates of saponite material. The highlight of the specimen are a number of ultra thin, skeletal-like red gmelinite crystals set in an amygdale with transparent analcime crystals - a unique specimen from one of the gmelinite Co-Type Localities.

Mineral Data
What's on the rock

Gmelinite

Synonym Of: 

Gmelinite-Ca

Formula: 
(Ca,Na2)[Al2Si4O12]·6H2O
Strunz: 
9.GD.05
Hardness: 
4.5

Gmelinite-K

Formula: 
(K2,Na2,Ca)[Al2Si4O12]·6H2O
Strunz: 
9.GD.05
Hardness: 
4.5

Gmelinite-Na

Formula: 
(Na2,Ca)[Al2Si4O12]·6H2O
Strunz: 
9.GD.05
Hardness: 
4.5
Group Parent: 
Zeolite Group

Saponite

Formula: 
Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2·nH2O
Strunz: 
9.EC.45
Hardness: 
1.5 - 2.0
Type Locality: 
Lizard Point, Landewednack, Lizard Peninsula, Cornwall, England, UK

Analcime

Formula: 
Na2(Al2Si4O12)·2H2O
Strunz: 
9.GB.05
Crystal System: 
Triclinic
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy

Seller Information

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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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