granit is considered
Tiger's eye is a type of gemstone that is identified by it's red or brown color with stripes. This gemstone is a member of the quartz group and is not considered rare.
because they are rare to find and they also are attractive to the eye. for example some are shiny.
I think it is considered a gemstone, but not precious or rare. It is just petrified tree sap.
Because it is rare, beautiful, and timeless -- its natural assets are unmatched by any other gemstone.
This would be called a gemstone.
A rock that is valued because it is beautiful and rare is a gemstone. Gemstones are minerals that are cut and polished to be used in jewelry for their beauty and rarity. Examples of gemstones include diamonds, rubies, and sapphires.
Yes, mines can have a few different types of gemstones, although if they are of much lower quality, they will probably be ignored in favor of the more profitable ones.
Natural Pink Topaz is considered to be the most rare because it is found in natural beautiful colors are rare to the species and it is very costly also.
A rare mineral that can be cut and polished could be called a gemstone.
The blue variety of a rare mineral used as a gemstone is called blue diamond. Blue diamonds are highly sought after for their rarity and unique color.
A gemstone: rarity, beauty, durability, acceptibility Quartz, although not rare, grows in a definite crystal structure. It comes in many different colours that are not as rare as rock crystal (clear/white quartz), and to find a clearer crystal (less included) is even more rare. Quartz is #7 on Moh's scale of hardness, labelling it moderately durable and is somewhat inexpensive which, for a lot of budgets is desirable, because you still get a beautiful piece for less $$.
Stones that are rare, and look beautiful are considered Gems.