Granular: Graphite rock is typically composed of a fine-grained aggregate of graphite crystals. The individual crystals may be visible to the naked eye or may require magnification to be seen.
Flaky: Graphite crystals have a layered structure, and this can give graphite rock a flaky or scaly appearance. The flakes can be easily separated from each other, making graphite a relatively soft and friable material.
Lustrous: Graphite has a metallic luster, which means that it reflects light in a way that gives it a shiny or glossy appearance. The luster of graphite can be used to distinguish it from other types of rocks.
Soft: Graphite is a very soft mineral, with a Mohs hardness of 1. This means that it can be easily scratched by other minerals, such as quartz or feldspar.
Black: Graphite is typically black in color, although it can sometimes have a gray or brownish tinge. The dark color of graphite is due to its high carbon content.