Montmorillonite, Quartz

Unknown Owner

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Montmorillonite falls into the categories of clays - in this case, with a slightly pink tone, richly included inside of a cluster of intergrown, LARGE, sharp quartz crystals. The biggest crystal here is skeletal internally, and is wrapped around a smaller crystal of more conventional form. The quartz has a superb GLASSY luster. Old material from San Diego, circa 1950s-70s.