Handcrafted Navajo heart pendant. Solid sterling silver with genuine orange, red & purple spiny oyster shell and turquoise.The unique inlay style of this pendant is called "cobblestone" as it looks brick pavers of streets and walkways. The mini pendant measures only 1/2" x 5/8", 16" chain included. NAVAJO HANDCRAFTED HEART PENDANT Spiny Oyster Shell (orange, purple and reddish colors) Living Spondylus shells are, indeed, very spiny, but the polished product looks very smooth the most used Spondylid Bivalve shell colors include orange, reds, and purples and may include distinct striations and color variations. One also finds pink, red, brown, yellow, orange, and white on the market. Kingman Turquoise originates in the Mineral Park Mining District near Kingman, Arizona. One of the largest domestic turquoise mines, it is found in a large open pit copper mine in the high desert country. The Kingman Mine district was first mined by Native Americans; it was part of the most extensive prehistoric workings in Arizona.