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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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On this blog Freakingcat will present regularly new rare gemstones which we manage to facet. We will give tips and tricks directly from our cutting tables to cutters and collectors.

We have right now an inventory of approximately 900 different gems, a total of over 10.000 gems and are eager to break soon through the 1000 gems barrier.

This is the biggest collection of Rare Gemstones in the world!

You can find most of our gems at FREAKINGCAT 

For now, here is a long list of our inventory! Subscribe to our newsletter to receive weekly updates about our special promotions!