Native copper is a term for Copper metal (Cu) that forms in nature as opposed to human refining of copper ore. Native copper is rarely associated with agate – tiny copper replacement agates from Michigan and Campbellite from the Bisbee Mine in Arizona are the only two examples that come to mind and specimens are hard to come by. In late 2018, local miners discovered a deposit of copper minerals on the island of Obi in North Maluku Indonesia. Over the next few years, they exte

Few stones occupy as deep and storied a place in human history as Jade. The name Jade originates from the Spanish "piedra de la ijada",...

The geology of Sumatra and West Java Indonesia includes a vast petrified forest from the Tertiary period. Tons of petrified wood is...

Gem dinosaur bone (or "gembone") is a truly fascinating stone. It's not just a beautiful gem with endless variation, but a...

Native copper is a term for Copper metal (Cu) that forms in nature as opposed to human refining of copper ore. Native copper is rarely...