greenish yellow
Ruby is a precious gemstone known for its deep red color
Seraphinite's chatoyancy (optical reflectance) gives it a feathery appearance associated with angels (also known as seraphim
and much of the black Onyx on the market has been artificially colored
olive green and gray-green
Kyanite Multi 4mm Round - 15-16 Inch july_carnelian greenish yellowKyanite 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