Chrysanthemum stone is generally dark-gray or black, and does not contain radioactive elements, so it has a high collection value. Although the composition of chrysanthemum stone itself is not very rare, the formation is uncommon, so the stone is listed as a gem.
Chrysanthemum Stone formed from the geological changes that occurred some 248 to 290 million years ago in the Permian age of the Paleozoic era. It was created from high temperatures and from the compression of thick, rich, organic mud at the bottom of the sea. As calcium carbonate and strontium sulfate seeped into the mix, continued pressure and deposition allowed radial lath-like crystals to be formed as flower patterns.
This Obelisk weighs 76grams / 2.68 oz