gemstones
Articles
- KyaniteAluminosilicate mineral
- MoldaviteGreen natural glass possibly formed by a meteorite impact
- EudialyteCyclosilicate mineral
- DioptaseCyclosilicate mineral
- KyaniteAluminosilicate mineral
- ThundereggNodule-like rock, that is formed within rhyolitic volcanic ash layers
- PeridotGreen gem-quality mineral
- MoldaviteGreen natural glass possibly formed by a meteorite impact
- SphaleriteZinc-iron sulfide mineral
- Goldstone (glass)Type of glass
- TaaffeiteRare gemstone
- SphaleriteZinc-iron sulfide mineral
- Goldstone (glass)Type of glass
- TaaffeiteRare gemstone
- OligoclaseSodium-rich plagioclase feldspar mineral
- HiddeniteYellowish or greenish green mineral
- MoldaviteGreen natural glass possibly formed by a meteorite impact
- KyaniteAluminosilicate mineral
- RhodoniteSingle chain manganese inosilicate (MnSiO<sub>3</sub>)
- SphaleriteZinc-iron sulfide mineral
- Goldstone (glass)Type of glass
- TaaffeiteRare gemstone
- HeleniteArtificial glass made from volcanic ash
- SphaleriteZinc-iron sulfide mineral
- Goldstone (glass)Type of glass
- TaaffeiteRare gemstone
- KyaniteAluminosilicate mineral
- MoldaviteGreen natural glass possibly formed by a meteorite impact
- ThundereggNodule-like rock, that is formed within rhyolitic volcanic ash layers
- TaaffeiteRare gemstone
- SphaleriteZinc-iron sulfide mineral
- Goldstone (glass)Type of glass
- KyaniteAluminosilicate mineral
- MoldaviteGreen natural glass possibly formed by a meteorite impact
- Gemstone irradiationProcess to enhance a gemstone's optical properties