7.6" Slab Of Clay Canyon Variscite - Old Collection

This is an exceptional, collector quality slab of a rare and highly sought after mineral, Variscite from the Little Green Monster Mine mine in Clay Canyon of Utah. The material was collected between 1937 and 1940 and almost none has been collected since. Most of it, and likely these slabs were sold out of the Smithsonian gift shop, then the National Museum.

The slab is 7.6" wide and .75" thick, it has been polished on both sides and includes the secondary mineral Crandallite (yellow banding) and Wardite (blue banding)

More information about the Clay Canyon Variscite can be found on Mindat at the link below:

Clay Canyon & the Little Green Monster Variscite Mine

Variscite is a secondary mineral formed by direct deposition from phosphate-bearing water that has reacted with aluminium-rich rocks in a near-surface environment. It occurs as fine-grained masses in nodules, cavity fillings, and crusts. Variscite often contains white veins of the calcium aluminium phosphate mineral crandallite. It is sometimes confused with turquoise; however, variscite is usually greener in color.