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Rock is polished, either naturally, or by human activity, by abrasion or tumbling action.
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How much is diorite worth?
Around 100$ if Polished, 25$ if not.
What causes bedrock to appear scraped and polished?
glacial movement
What produces the scraping action that often causes a polished look on solid rock over which a glacier has moved?
The thick layer of ice produces the polished look on solid rock by scraping the rock as it moves over it
A rare valuable mineral that can be cut and polished to give it a beautiful appearance?
a gem
How does gneiss feel?
A fractured surface--rough. A polished or worn surface--smooth.
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.
What type of erosion can make pits and rocks and produce smooth and polished surfaces?
It is abrasion
Are tumbled polished stones or also known as rocks OK in the water?
Rock will be fine immersed in water.
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.
Andre has 8 polished rocks at home How many ways can he choose 4 of them to take to a rock and gemstone show?
70
Why can you find your dog?
Because your dog wants his toenails polished hot pink, like mine. OPI NAIL POLISH ROCKS!
What diamonds look like?
Out of the ground they look like little rocks/crystals. It is only when they are cut and polished that they look like they do in a ring.
What of rock is shiny and clear?
The rocks amber and obsidian can be clear in polished thin specimens. Many minerals are shiny and clear in pure crystalline form.
What kind of rock is clear and shiny?
The rocks amber and obsidian can be clear in polished thin specimens. Many minerals are shiny and clear in pure crystalline form.
What type of erosion occurs in Antarctica?
Above the ice, primary erosion occurs by Katabatic wind. Nunataks are polished and ventafacts are faceted, grooved, and polished by blowing ice. Below the ice, the glaciers roll continental rocks downhill as they flow. Once icebergs calve off into the sea and melt below the waterline, some of these rocks drop into the seabed. It was the discovery of these continental rocks in the sea's benthos that confirmed the existence of Antarctica as a continent. Explorers made this discovery in the 1700s.
