Natural White Howlite / Turquoise Sphere Polished Crystal Mineral - India You will receive exactly this Howlite Sphere (see photo, the photos are taken under bright light, stand included)! Howlite is almost always found in masses or boitroydal nodules. Only rarely is it found as crystals, and they are small. The stone was discovered in 1868 by J.D. Dana and named for Canadian chemist H. Origin: the USA, Canada, S. Africa, China Mineral Species: Howlite Color: White, Bright sky-blue Chemical Formula: Ca2B5SiO9(OH)5, Calcium borosilicate hydroxide Mineral Group: Borates Hardness: 3.5 Crystal System: Monoclinic Origin of Name Mythology: After Henry How (1828 - 1879) Canadian chemist, geologist, and mineralogist, of Nova Scotia, who first described the species. Howlite has the appearance of white marble or porcelain with a sub-vitreous lustre. It is opaque and white or grey with grey, black or dark brown veins running through it. Gemstone quality howlite can be interspersed by the darker matrix (which appears as the veins), or it can be matrix-free and pure white. Howlite is best known for imitating other gemstones. (The above information is provided solely for informational purpose. Kindly note that all stones are offered for decorative purposes only. Please, handle your stones with great care, do not grind or crumble them, do not dip or add them into your food or drink, do not use any parts of them in any elixirs, potions, lotions etc. Always make sure you wash your hands before and after working with your crystals.)