Blue Kyanite 6x12-10x20mm Free Form Pear A Grade - 15-16 Inch Stone Type_Amber The antibacterial properties of shungite

The antibacterial properties of shungite have been confirmed by modern testing

The stone ranges in hue from green

Ancient Cellar Black Agate is a natural agate that is dyed and heated to give it the unique color and pattern we call Ancient Cellar

yellow and brown

although sometimes mistaken for Jasper

Blue Kyanite 6x12-10x20mm Free Form Pear A Grade - 15-16 Inch Stone Type_Amber The antibacterial properties of shungiteKyanite often occurs as long, bladed, striated crystals, transparent or translucent with a pearly luster. An aluminum silicate mineral, it may appear in white, pink, yellow, orange, green, blue, gray and black. In addition to its value as a gemstone, Kyanite is also extremely useful in industrial applications due to its high heat resistance. It is often used in kiln furniture and foundry molds, as well as for brake shoes, grinding wheels and cutting