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Phillipsite & Erionite-K

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CLB169489

Phillipsite & Erionite-K

Description Tabs

Description
Locality: 
Malpais Hill, Dudleyville, Pinal County, Arizona, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 4 × 2.8 cm
Description

Nice specimen with colorless to grayish phillipsite n gray matrix. The pecimen is labeled erionite-k, but I cannot guarantee for it. If it's there it's too small for my lenses. Maybe the white material under some of the phillipsite ... Eventually white or colorless heulandite present.

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

Erionite-K

Formula: 
(K2,Ca,Na2)2[Al4Si14O36]·15H2O
Strunz: 
9.GD.20
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Type Locality: 
Rome, Marion Co., Oregon, USA

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