Alaskite

ALASKITE (from the name of the Alaska peninsula, where it has been found for thAlaskitee first time * EN: alaskite; DE: Alaskit; FR: alaskite; ES: alaskaita; RU: аляскит) is the leucocratic sub-alkaline granite without the dark-coloured minerals or with their minor quantity (up to 5%).

Alaskite consists of the large, approximately equal in size crystals of quartz (approximately 35%), and of the potassium-sodium (55-65%) and lime-sodium (<10%) feldspar. It forms large massifs. It has been described within the USSR within many mountainous regions (for example, within Kazakhstan, at the Altai). Alaskite is extracted on the largest scale within Canada and Japan, where the development is performed by the large quarries. The varieties, which are especially rich in the potassium-sodium feldspar, and are not containing the coloured minerals, are used during the production of glass and thin ceramics. They also use alaskite for the production of the crushed gravel, less often for the production of the facing materials.