THE MATERIAL LIBRARY
Labradorite
A feldspar prized for its moving flashes of color.
Colors & patterns
Gray or dark body color with blue, green, gold or multicolored flashes.
Typical origins
Canada, Madagascar and Finland are notable sources.
Hardness
6–6.5 on the Mohs scale.
Choosing & setting this material
The optical effect is labradorescence and changes with viewing angle. Ask for a short video of a real stone; cleavage requires protection from knocks.
Care & cleaning
Clean gently with lukewarm water, a little mild soap and a soft cloth, then dry. Avoid steam, ultrasonic cleaners, harsh chemicals and sudden temperature changes, especially when treatments are unknown.
Origins above describe typical sources of the material, not the origin of an illustrated or stocked stone. Hardness measures scratch resistance, not resistance to breaking. Confirm the identity and treatments of the actual piece.
Further reading: Material reference · GIA: gem treatments