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Terms
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- Gems
- a rare mineral prized for their beauty
- gemstone
- a durable and beautiful mineral that can now be cut and polished
- important gems
- rubies are used in laysers, quartz is used in electronics and timepieces, industial diamonds are used to heavy duty drills synthetic diamonds are now indistinguishable from the natual ones
- pearls
- formed from oysters so they are organicly created
- Opals
- lack crystaline structure
- Ores
- minerals or a combination of minerals from which metals or nonmetals can be distracted in usable amounts
- metals and examples
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are minerals or elements that usually have shiny surfaces that are a good conducor of heat and electricity
iron gold and aluminum - smelting
- a process in which ore is made so hot that metals of other useful substances may be extracted
- Metals which are not mierals include:
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steel: made with conium and iron
brass: made from copper and Zinc
not naturally occuring - nonmetals
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have dull surfaces and are usually poor conductors of electricity
ex. sulfer - vein minerals
- minerals that will fill up cracks and fractures in a rock. Sometimes they will fill empty spaces caused by collapsed rocks
- titanium and example
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a lightweight, durable metal that can be extracted from two minerals
ilmenite and rutile