Amethyst, a variety of quartz, has a hardness rating of 7 on Mohs scale.
Amethyst
Aquamarine is a semi-precious stone that is considered a common gemstone.
Amethyst is a mineral, a form of quartz.
Amethyst is 7.0 on the Mohs hardness scale; it is fairly hard. Amethyst is a member of the quartz family. Most citrine on the market is reported to be heat-treated amethyst.
Amethyst is the birthstone for the month of February.
Its expensive because, Emeralds are super hard to find today, but Ameythyses are found easly in gemstone mines.
I believe it sold for a whopping $100,000,930,099 in a US auction in Oklahoma in 1969.
the kannada word for amethyst is padmaraga
No, amethyst is not a nonmetal. Amethyst is a variety of quartz, which is a mineral and not classified as a metal or nonmetal.
amethyst
Amethyst
Amethyst is cukantiyum in Tamil.
yes, it is. amethyst is a purple type of quartz.
The birthstone of February is the amethyst.
Amethyst
Depends on the particular purplish crystal. Amethyst is not too expensive but other purplish crystals expensive. So it depends.
Aquamarine is a semi-precious stone that is considered a common gemstone.