All tones & colors
Strength: 10/10
STRONGEST MINERAL
Spinel
Strength: 7-7.5/10
NATURAL
THE GRAY GEM OF CHOICE
Tourmalinated Quartz
Strength: 7-7.5/10
NATURAL
THE GRAY GEM OF CHOICE
Dendritic Quartz
Strength: 7-7.5/10
NATURAL
CUSTOM SOURCED & CUT FOR MIDWINTER CO.
Strawberry Quartz
Strength: 7/10
Black Star Quartz
Strength: 7/10
Moss Agate
Strength: 6.5-7/10
Moss Aquamarine
Strength: 7/10
Tourmaline
Strength: 7/10
Topaz
Strength: 7/10
Zircon
Strength: : 7/10
Opal
Strength: (low) 5/10