Natrolite & calcite, Oregon, USA
description: 2 1/4" across It is a fine specimen of average size from a locality this is well known among collectors of American zeolites. The piece consist of an attractive group of frosted white scaleneohedral calcite crystals on a basalt matrix which is covered by a druse of white acicular natrolite crystals. It is a highly esthetic, well proportioned specimen.
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