GEOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -The Pyrolusite ore chemical formula is MnO₂.

Detailed explanation-3: -Manganese dioxide is the inorganic compound with the formula MnO2. This blackish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese and a component of manganese nodules.

Detailed explanation-4: -Manganese dioxide is a manganese molecular entity with formula MnO2. It is a manganese molecular entity and a metal oxide.