pyrolusite - перевод на арабский
MANGANESE DIOXIDE MINERAL
Polianite; Pyrolucite
pyrolusite
بَيرُولُوزيت (مادة تستعمل لتوليد الكهرباء)
pyrolusite
بَيرُولُوزيت:مادة تستعمل لتوليد الكهرباء
Определение
Pyrolusite
·noun Manganese dioxide, a mineral of an iron-black or dark steel-gray color and metallic luster, usually soft. Pyrolusite parts with its oxygen at a red heat, and is extensively used in discharging the brown and green tints of glass (whence its name).
Википедия
Pyrolusite
Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO2) and is important as an ore of manganese. It is a black, amorphous appearing mineral, often with a granular, fibrous, or columnar structure, sometimes forming reniform crusts. It has a metallic luster, a black or bluish-black streak, and readily soils the fingers. The specific gravity is about 4.8. Its name is from the Greek for fire and to wash, in reference to its use as a way to remove tints from glass.
