Opal and amber are not minerals.
The web address of the Houston Gem And Mineral Society is: http://www.hgms.org
No State mineral, there is a State Gem that may fall into that category though, fossilized wood, weirdly enough.
Gemmmmmmm just one m HAHAHAHA!!!!!!!
Diamond is a gem, but not the only gemstone. Rubies, emeralds, sapphires and other stones can also be considered gemstones. The word gem can also be used to describe other nouns, such as a person: "She's a gem."
The state "gem" in the Lake Superior Agate. I am not sure there is a "Sate mineral" though iron ore has played a major role in Minnesota's history and economy due to the Iron Range in the Northern part of the state.
Yes, like the mineral Quartz is also a gem.
Diamond is a mineral and a gem. The main ore of diamond is called kimberlite.
its an mineral
Ruby and sapphire are both gem varieties of the mineral corundum, an aluminum oxide.
a diamond is a mineral (also is a gem)
A sapphire gem is mainly composed of the mineral corundum and other trace mineral impurities that give it its color.
Gem
Yes.
No, nickel is a mineral.
The New Jersey state gem is the Natrolite
If you mean gem as in a great thing, then Youkon's known gem in potatoes. The mineral gem, however, is gold.
The web address of the Houston Gem And Mineral Society is: http://www.hgms.org