Opal is not a mineral, but a silica gel.
a diamond is a mineral (also is a gem)
gem
Granite is a rock, not a mineral, gem, or ore. It is a type of igneous rock formed from the cooling and solidification of magma beneath the Earth's surface.
what is the name of the state stone in delaware
You may be thinking about wulfenite. The mineral was named after Franz Xavier von Wulfen, an Austrian mineralogist who lived between 1728 and 1805. The color of the mineral ranges from yellow and yellow-gray to orange-red.1
Yes, like the mineral Quartz is also a gem.
its an mineral
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 web address of the Fallbrook Gem And Mineral Museum is: http://www.fgms.org
The web address of the Houston Gem And Mineral Society is: http://www.hgms.org
a gem
Opal and amber are not minerals.
gem