Carbon minerals

Graphite polymorphs

Diamond

Mineral name:  diamond

Discovery:  India

*References*

Carbyne-type carbon

Mineral name:  chaoite (named after Edward Chao)

Discovery:  Ries meteor crater, Germany

*References*

Wurzite-type carbon 

Mineral name:  lonsdaleite (named after Kathaleen Lonsdale)

Discovery:  Barringer meteor crater, Arizona, U.S.A.

*References*

Remarks: Lonsdaleite is also called "hexagonal diamond".

Trigonal R3m phase

Mineral name: unnamed

Discovery:  Haverö meteorite (ureilite) 

*References* 

Cubic Pm3m phase 

Mineral name: unnamed 

Discovery:  Popigai crater, Russia 

*References*