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Rubies Emeralds Topazs Onyxs Amethysts Diamonds Sapphire Amber Tanzanite
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What resources are provided by the Brazilian Highlands?
Mainly minerals and precious and semi-precious gemstones.
Why are gemstones precious?
Because they're beautiful and/or rare.
How many types of gemstones are there?
Two main types; precious stones and non precious stones.
How are diamonds and emeralds alike?
Both are considered precious gemstones.
Is crystal a precious stone?
It depends. All gemstones other than pearls and opals are crystals, but most crystals are not gemstones.
What has the author Peter C Keller written?
Peter C. Keller has written: 'Gemstones of east Africa' -- subject(s): Precious stones 'Gemstones and their origins' -- subject(s): Precious stones
How many ounces are in 5 pounds of dry gelitan?
1 pound of anything except some gemstones and precious metals = 16 ounces of it 5 pound of anything except some gemstones and precious metals = 80 ounces of it
What are gems such as diamonds and emaralds called?
When describing them, you could call them precious gems or gemstones.
What precious stones did not come from rock?
All precious stones come from rocks, but pearls are formed by oysters. Synthetic gemstones are made in factories.
What were the major goods in the Persian Empire?
The precious and the semi-precious jewels and the gemstones were the major goods often brought to Persia by means of the Silk Route.
Why is fluorite not a gemstone?
Fluorite is not particularly durable nor particularly rare as most precious gemstones are.
What is the system for weighting precious metal and gemstones?
Carats is the measure of weighting gemstones 1 carat = 200 Milligrams 5 carats = 1 gram Hope this helps Ahmed
