This natural Blue Green Smithsonite originates from Australia and its weight is about 31 carats. The measurements are 26.42mm x 9.84mm x 9.47mm (length x width x depth). The shape/cut-style of this Smithsonite is Oval Cabochon. This 30.86ct Smithsonite gem is available to order and can be shipped anywhere in the world. Gemstone Certification can also be provided as an optional service.
Smithsonite is one of two zinc-containing minerals discovered by the British chemist and mineralogist James Smithson in 1803. Or, more precisely, Smithson discovered that a zinc-containing mineral known by the name calamine in the 18th century was in fact two separate minerals -- a zinc carbonate and zinc silicate. The zinc carbonate was named hemimorphite and the zinc silicate was named smithsonite in Smithson's honor.
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The amethysts had numerous table scratches and depth of color was too light with windowing. Am will to try again to check on my specific needs being met.
Jane E Myers, GG,AJP
Jems d' Amour