Amber 4-22mm Dark Chip - 15-16 Inch Stone Type_Indigo Gabbro which may form green stains

which may form green stains or specks on Azurite crystals or aggregates

Similar to Tiger's Eye

Botswana Agate displays highly defined parallel banding

however different colors have additional attributes such as enhanced emotional resilience

giving some rubies a slightly brownish or purplish tint

Amber 4-22mm Dark Chip - 15-16 Inch Stone Type_Indigo Gabbro which may form green stainsAmber is a yellow, brown or orange organic gem, neither a crystal nor a mineral. It is a product of nature, the fossilized resin of prehistoric pine trees. A mixture of hydrocarbons, Amber is composed of several tree resins, plant materials, oil and succinic acid. It is most often found in the Baltic region, where it originated approximately 50 million years ago.