no. silicate minerals have silicon in them
no becase there others name
Gemstone is a mineral or organic material that has been selected for its beauty, durability, and rarity and then used to make jewelry or other human adornments.
The ruby is a variety of the mineral corundum, so the ruby is indeed a mineral.
Any mineral that you can think of that is under ground! The ones i know right now are onyx, and other stuff!
Onyx is not flammable.
No onyx is not a valuable gemstone, in fact it is only considered a semi-precious gemstone.
Opal , Onyx ,
Opal and onyx are two I can think of spontaneously.
This would be called a gemstone.
The onyx gemstone is not very expensive, so depending upon what metal is used for the setting and the ring, an onyx ring may not be expensive at all.
Sapphire is a gemstone version of the mineral corundum.
Pennsylvania has no official rock, stone, gemstone or mineral.
The Mineral you mention is I think called Samarskite
olivine
no. silicate minerals have silicon in them
its a gemstone