gemstone

Copper Composite Turquoise (Purple and Blue)

Composite Hydrous copper aluminum phosphate with bronze/copper matrix binding

Hardness: 5-6 on Mohs scale. Colors: Vibrant deep purple, turquoise blue, and white fragments joined by metallic metallic-copper/bronze matrix lines. Luster: Waxy to sub-vitreous. Structure: Microcrystalline aggregate composite.

Hardness: 5-6 on Mohs scale
Luster: Waxy to sub-vitreous

Identified July 22, 2026More gemstone →

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Physical properties

Formation & geological history

Created by reconstituting natural crushed turquoise, spiny oyster, and/or dyed quartz/howlite minerals with molten copper, bronze, or epoxy resin under heat and pressure.

Uses & applications

Popularly used as a cabochon in Southwestern-style silver jewelry, pendants, rings, and artisan lapidary work.

Geological facts

Also known as Mojave turquoise or Dahila turquoise, these stones are engineered composites designed to combine rich contrasting mineral colors with striking metallic vein patterns.

Field identification & locations

Identified by distinct geometric or irregular mosaic patches of vivid blue, purple, and white bound together by metallic copper-colored vein fillings. Frequently mounted in sterling silver settings.

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