general/gemstones
Surf Wiki
Hiddenite
Yellowish or greenish green mineral
Dioptase
Cyclosilicate mineral
Gemstone irradiation
Process to enhance a gemstone's optical properties
Thunderegg
Nodule-like rock, that is formed within rhyolitic volcanic ash layers
Eudialyte
Cyclosilicate mineral
Taaffeite
Rare gemstone
Helenite
Artificial glass made from volcanic ash
Moldavite
Green natural glass possibly formed by a meteorite impact
Rhodonite
Single chain manganese inosilicate (MnSiO<sub>3</sub>)
Goldstone (glass)
Type of glass
Peridot
Green gem-quality mineral
Kyanite
Aluminosilicate mineral
Oligoclase
Sodium-rich plagioclase feldspar mineral
Sphalerite
Zinc-iron sulfide mineral