Mojave Purple Turquoise Pendant and Chain Necklace

Vintage sterling silver pendant and box chain necklace. The pendant is set with mojave purple turquoise. The oversize bails is embossed. Stone is 1" long and the pendant is 1 3/4" long with the bail. The chain is 18" long. Silver is tarnished. Will polish up. Weight 12 grams. Marked 925 inside of the bail and near the clasp. 

(The widely popular Mojave turquoise is crafted using a hydraulic press that assembles tiny turquoise nuggets using a bronze metal matrix throughout the brick of base turquoise. Once the turquoise is assembled, it is dyed purple  and further stabilized to harden the stone. The spots of turquoise are shards of turquoise that was non-porous and did not absorb the dye)