closeup of beautiful colorful silicon carbide crystals on a black background

silicon carbide carborundum crystal moissanite mineral gem black background rare closeup beautiful detail synthetic iridescent abrasive material stone semiconductor precious raw carbon meteorite gemstone semiprecious jewel jewelry rock mineralogy science hard collection collectable piece hobby specimen crystalline structure rough colorful surface look pattern technology industry tech diamond imitation machining blue yellow pink shiny rainbow macro colored chemical compound hardness geology nature artificial collecting sample item design uneven simulant sandpaper quality production purple orange green crystals use detail imitation