Variscite is a copper phosphate mineral and is similar to turquoise
The stone used here measures 15 by 12 mm or about 9/16 by 5/16 inches.
The entire pendant measures 1 3/8 by 3/4 inch.
Variscite is a secondary mineral formed by direct deposition from phosphate-bearing water which has reacted with aluminium-rich rocks in a near-surface environment.[6] 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 was first described in 1837 and named for the locality of Variscia, the historical name of the Vogtland, in Germany.