IMA mineral species

Graphite

C

Allotrope of carbon, mineral, substance.

Blue Black Gray

Graphite specimen — GraphiteUSGOV.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	C
Elements	C
Crystal system	Hexagonal
Mohs hardness	1 – 2
Density	2.09 – 2.23 g/cm³
Streak	black
Color	—
IMA symbol	Gr
Nickel–Strunz class	1.CB.05a

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

Varieties & related stones

Cliftonite

Learn more

Graphite on Mindat.org
Wikipedia article
Wikidata item Q5309 (source of this page's data – you can correct it there)