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.
1 Zircon (from browny to reddish or blue, from green to blue or yellow). 2  Tanzanite (a variety of zoisite) is an emblematic case: it originates in nature, an undesireable brownish-yellow color, only after the heat treatment those stones will get the worldwide-known beautiful purplish-blue color.