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A gem is considered any attractive mineral or rock which when cut and polished, may be used for ornamentation. A gem can be either a mineral or a rock, but most gems are minerals. A rock is an aggregate of many minerals, with no specific structure, while a mineral has a much more ordered atomic structure, with specific physical and chemical properties. A gem is not necessarily a crystal; lapis lazuli is not a mineral or a crystal, yet can still be considered a gem due to its desirable color and traits when polished.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agois a gem a rock
Robert Raeburn
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What type of rock is peridot found in?
Peridot, the gem form of the mineral olivine, is found in ultra-mafic rock, or in association with basaltic lava.
What is another name for rock?
There are several different other names for the word rock. Some of these names include gemstone, stone, careen, gem, and endocarp.
Is peridot a igneous rock or is it something else?
Peridot is gem quality olivine. Olivine is a mineral, not a rock. It is found in mafic and ultramafic igneous rocks.
What type of rock is an emerald?
It is a very hard rock with sandpaper like feel.
What is Youkons known gem?
If you mean gem as in a great thing, then Youkon's known gem in potatoes. The mineral gem, however, is gold.
What is another name for a diomand?
a gem, a gem stone and a sparkly rock. (?)
How do you wrte a sentence using gem?
You are such a gem! The gem fell onto the floor.
What is North Dakota's state rock?
North Dakota does not have a state rock nor mineral nor gem.
What makes a rock a gem?
a rock is hard and a gemstone is shinning and has manychemical
What is a three-letter word for valuable rock?
A valuable rock is a gem.
Does Pennsylvania have a state rock?
It has no official rock, stone, gem or mineral.
What is the difference between rocks and diamonds?
A rock is a rock, and a diamond is a gem.
What is the national stone gem of Mexico?
If you mean state rock, Colorado's state rock is yule marble
What is and amber gemstone?
a type of rock or gem
What rock has all mica?
gem stone
Is a diamond igneous rock?
no a diamond is a gem.
What is Pennsylvania's state rock?
It has no official state rock, stone, gem or mineral.
