including shiller — a sometimes iridescent bronzelike luster — in some stones
They are one of the largest molluscs
greenish gray or black within the white or gray stone
often with a mottled appearance
dainty necklace
Kyanite 2-3x3-5mm Graduated Irregular Rondelle Beads - 15-16 Inch Stone Type_Coral including shiller — a sometimesKyanite 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