Systemwide policy memos from Burger King Corporation 7. BK Â® GURU Training Information and Modules BKC may amend the components or requirements of the MOD Manual and implement changes to the BURGER KING Â® System in its sole discretion. Only approved products, equipment, services and procedures may be used in BURGER KING Â® restaurants.
Tanzanite is the blue/violet variety of the mineral zoisite (a calcium aluminium hydroxyl Sorosilicate) belonging to the epidote group. It was discovered by a Tanzanian Jumanne Mhero Ngoma in the Mererani Hills of Manyara Region in Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro.
Its chemical formula is KAlSi3O8, potassium aluminum silicate. Tanzanite is a variety of Zoisite. It is valued as a gem stone and has the chemical formula Ca2Al3Si3O12(OH). The Mica Group is the name given to a group of silicate minerals that have silicon and oxygen as their two major components. Muscovite is a member of the mica mineral group. It is more important as a rock-forming mineral than as a collectible specimen.