Metallic

Metallic

Metallic--looks like a metal (i.e., shiny and opaque)

  Submetallic

Submetallic

Submetallic--duller, less reflective than metallic

  Nonmetallic - Adamant

Nonmetallic - Adamant

Nonmetallic - Adamant--hard, sparkly diamond look

  Nonmetallic - Resinous

Nonmetallic - Resinous

Nonmetallic - Resinous--similar to amber, not quite glassy

  Nonmetallic - Vitreous/Glassy

Nonmetallic - Vitreous/Glassy

Nonmetallic - Vitreous/Glassy--similar appearance to glass

Nonmetallic - Pearly--slight mother-of-pearl appearance on cleavage face

  Nonmetallic - Greasy

Nonmetallic - Greasy

Nonmetallic - Greasy--looks oil-coated

  Nonmetallic - Silky

Nonmetallic - Silky

Nonmetallic - Silky--fine, parallel fiber look

  Nonmetallic - Dull

Nonmetallic - Dull

Nonmetallic - Dull--plain or clay/soil-like appearance