Thomsonite Specimen, India thumbnail in a convenient and comfortable-to-hold

in a convenient and comfortable-to-hold palm shape

225lbLength: >4

5 in x 2 in

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Thomsonite Specimen, India thumbnail in a convenient and comfortable-to-holdThomsonite, named after prominent chemist Thomas Thomson, is a well named mineral belonging to the zeolite group. Primarily composed of hydrated calcium silicate, it may have minor amounts of sodium and traces of potassium, but lacks barium, strontium, iron, and magnesium. Structurally, it is similar to sodium calcium zeolite mesolite and sodium zeolite natrolite, but does not form a continuous chemical series with either. It can be found in a range