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Andre has 8 polished rocks at home How many ways can he choose 4 of them to take to a rock and gemstone show?
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∙ 11y ago
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Wiki User
∙ 11y ago
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What is used as a gemstone?
A gemstone is a piece of attractive mineral, which - when cut and polished - is used to make jewelry. However certain rocks, (such as lapis-lazuli) and organic materials (such as amber or jet) are not minerals, but are still used for jewelry, and are therefore often considered to be gemstones as well. Most gemstones are hard, but some soft minerals are used in jewelry because of their lustre or other physical properties that have aesthetic value. Rarity is another characteristic that lends value to a gemstone.Gemstones are basically identified by Gemologists, They use Technical Terminology to describe a gem, The chemical composition of the material proves the material as a gemstone.
Where is the gemstone garnet found?
In many places in the world, usually associated with schists and other high grade metamorphic rocks.
Is a pearl a sedimentary rock?
No, a pearl is not a sedimentary rock. It is a gemstone that is formed inside the soft tissue of a living mollusk.
What glacier weather's rock's by plucking?
A glacier will pick up rocks as it moves downhill. It is these rocks that gouge out the underlying ground and will eventually form a 'U' shaped valley. As the rocks are also ground down into a paste, the bed rock layers the glacier moves over can become quite polished.
What is the difference between deflation and abrasion?
Deflation can lower the lands surface by several meters. Abrasion makes pits in rocks and produce smooth, polished surfaces.Deflation is a(n) erosion of the land by wind.Abrasion is a form of erosion that makes pit in the rocks and produce smooth, polished surfaces. (abrasion is common in some deserts and in some cold regions with strong wind).Hope this helps you !!!!! :D
How are rocks polished?
Rock is polished, either naturally, or by human activity, by abrasion or tumbling action.
What type of rocks are emeralds?
Emeralds are not actually rocks, but minerals of the beryl family that have gemstone qualities.
What is a polished rock?
Rock Tumbling is fun!! You put your rocks into a roller and spin it, it cleans your rocks!
Can rocks be polished and used as a mirror?
It depends what type of rock you want to polish.
How do you get the Golden Gemstone in Chrono Trigger?
After you upgrade the masamune you go to denodoro mountain and go to the part where the fiend throws rocks at you. after you catch one you obtain the golden gemstone.
Why is a diamond shiny?
Cut and faceted gemstone diamonds reflect the light, which some call shiny. Raw diamonds are dull rocks. Only 20% are sorted out for processing as gemstones and are cut, graded, and polished into valuable gems. Eighty percent are industrial diamonds that are used to enhance precision tools.
What type of erosion can make pits and rocks and produce smooth and polished surfaces?
It is abrasion
Are gemstone rocks?
Technically, yes. That's why a woman with a Diamond engagement ring is said to be wearing "a rock on her finger".
Are tumbled polished stones or also known as rocks OK in the water?
Rock will be fine immersed in water.
What is used as a gemstone?
A gemstone is a piece of attractive mineral, which - when cut and polished - is used to make jewelry. However certain rocks, (such as lapis-lazuli) and organic materials (such as amber or jet) are not minerals, but are still used for jewelry, and are therefore often considered to be gemstones as well. Most gemstones are hard, but some soft minerals are used in jewelry because of their lustre or other physical properties that have aesthetic value. Rarity is another characteristic that lends value to a gemstone.Gemstones are basically identified by Gemologists, They use Technical Terminology to describe a gem, The chemical composition of the material proves the material as a gemstone.
What is a polished looking reflection on rocks called?
The degree or type of reflection on a mineral's crystal face is called its lustre.
Are some polished rocks of value other than being pretty?
Polished rocks could have value due to rarity or ore content, eg: precious stones or gold in quartz. They could also have value due to structural properties that make them highly durable, eg: granite for building exteriors.
