Thomsonite & Analcime, Oregon

A very attractive specimen with clear trapezohedral crystals of Anamcime to a max of 0.8 cm. with white botryoidal Thomsonite from McGowan Creek, Coburg Hills, Lane County, Oregon.

Thomsonite, sodium calcium aluminum silicate, has a formula of NaCa2Al5Si5O20•6H2O. It is named for T. Thomson (1773-1852) Scottish chemist.

Analcime, a hydrated sodium aluminum silicate, has a formula of NaAlSi2O6•H2O. It is named from the Greek word meaning weak, referring to a weak electrical charge developed on rubbing.

Measures 3 x 2.5 x 2.3 centimeters.

Thomsonite & Analcime, Oregon
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  • Item #: ThomsoniteAnalcime12-10-1
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Price $35.00
Availability In-Stock