Not all crystals have smooth edges. The only crystals that I think have smooth edges are water worn ones. So your answer is no.
it is cleavage
It is smooth. Graphite is made up of crystals. It will have angles.
There are many types of rocks and they do not all look alike. Colors vary. Some have more than one color, like granite or marble that can have many colors. Some are smooth, like those that have been in a river for a while and have had the rough edges worn off, and some are jagged. Rocks come in all shapes and sizes.
Mostly, it depends on cooling time. If a rock cools very rapidly, a smooth texture is formed as the atoms quickly arrange themselves into a fairly smooth crystalline pattern. Think of obsidian; it cools very fast and has such small crystals looks like black warped glass. However, if a rock was formed below the Earth's surface (intrusively) like in a pluton, it will cool more slowly and will be rougher and have larger crystals.
Yes. Triclinic crystals are usually flat with sharp edges though they don't have right angles. ex. feldspar
A cut with smooth edges is called an incision.
Please stop by a bank and ask them for some other $1 coins. All "golden" dollars have smooth edges to make them more identifiable to people who are blind or have limited vision. The coins' smooth edges make it easier to tell them apart from quarters and half dollars when touched.
it is cleavage
I'm not sure what you mean by smooth raised edges, but I would suggest you take it to a coin dealer and have it appraised.
Marble. The crystals are ofcalcite (calcium carbonate). It's only smooth when polished, but it takes a high polish.
it is the property of solid crystal that they have straight edges and flat faces.
Smooth
sand paper
smooth
Because if there are no rough edges then there is less resistance.
Erosion after millions of years have caused the jagged edges to smooth out. Hi
Erosion after millions of years have caused the jagged edges to smooth out. Hi