Hematite is black to steel-gray or silver-gray
orthorhombic crystals or in massive form
found only in the Dominican Republic
Charoite is a stone that naturally occurs in intense purple hues
The inner layer of the shell is composed of nacre (mother-of-pearl)
Green Kyanite 5x10-20mm Top Drill Teeth - 15-16 Inch 48hr_04292025 Hematite is black to steel-grayKyanite 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