Negativity
These stones & crystals assist in removing negativity in your life - by no means are they all inclusive or couldn't have other properties and uses

Andulusite
Apache Tears (Black Obsidian)
Axinite
Black Onyx
Black Tourmaline
Blue Obsidian
Breciated Jasper
Bronzite
Citrine
Dragons Blood Jasper
Hematite
Kyanite (green)
Lepidolite
Peacock Ore
Rutile