Rock Tumbling is fun!! You put your rocks into a roller and spin it, it cleans your rocks!
About 20% of all diamonds mined can be cut and polished into gemstones -- and in that case, you could call one a 'polished rock'. 'Polished rock' is not considered a natural state for a raw diamond, however.
slickenslides
Yes, any rock that is pitted grooved or polished is usually caused by wind abrasion.
It has a polished reflective surface.
a rock
The polished surfaces of rock created through the movement of rock along a fault are known as slickensides. These surfaces are often characterized by their shiny appearance due to the grinding and polishing action caused by the frictional movement of rocks. Slickensides can provide valuable information about the direction and nature of past fault movement.
It depends what type of rock you want to polish.
Glacial abrasion is the process responsible for the scraping action that creates a polished look on solid rock as a glacier moves over it. This occurs when rocks embedded in the base of the glacier grind against the underlying bedrock, smoothing and polishing it. The fine rock powder produced during this process is known as rock flour.
If you're asking what volcanic rock can be sharpened as a cutting tool, the answer is obsidian.
British Blues combo to polished pop/rock.
It is abrasion
A monument could be made from many types of rock. Polished granite and marble, are two popular kinds.