Trona (trisodium hydrogendicarbonate dihydrate); Na3H(CO3)2·2H2O is an evaporite mineral. (It dissolves in water!!). The word “trona” comes to English by way of either Swedish (trona) or Spanish (trona), with both possible sources having the same meaning as in English. Both of these derive from the Arabic trōn which in turn derives from the Arabic natron, and Hebrew נטרן (natruna), which comes from ancient Greek νιτρον (nitron), derived ultimately from ancient Egyptian ntry (or nitry). It’s very rare to get clear gems.

Trona, mineral, rare collector stone, Freakingcat

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