మాంగనీస్ డయాక్సైడ్ కలిగిన ఒక ఖనిజ; మాంగనీస్ యొక్క ముఖ్యమైన మూలం,

pyrolusite's Usage Examples:

Namibia where it is associated with other manganese oxides, pyrolusite and psilomelane and the iron-manganese mineral bixbyite.

from manganese oxides such as pyrolusite, manganite, and especially psilomelane form at the oxidized portion of manganese-rich mineral deposits.

high barium content, and also Mn4+, perhaps due to a small admixture of pyrolusite (Mn4+O2).

Typical associated minerals include hausmannite, galaxite, braunite, pyrolusite, coronadite, hematite and magnetite.

Specific mineral varieties include pyrolusite, lithiophorite, nsutite, takanelite and vernadite.

levels of manganese and smelting them directly, or by adding pyrolusite or manganite to previously smelted iron in a cupellation furnace.

It occurs in association with pyrolusite, nsutite, braunite, chalcophanite, manganite and various other manganese.

is used as flux for blast furnaces, while others such as wolframite, pyrolusite and chromite are used in making ferrous alloys.

botryoidal/mamillary: intersecting kidney-shaped masses hematite, pyrolusite, greenockite Reticulated Cerussite Crystals forming net-like intergrowths cerussite.

University of Vienna, obtaining his doctorate in 1887 with a thesis on manganite, polianite and pyrolusite.

Typical associated minerals include hausmannite, galaxite, braunite, pyrolusite, coronadite, hematite and magnetite.

Manganese occurs principally as pyrolusite (MnO2), braunite, (Mn2+Mn3+6)(SiO12), psilomelane (Ba,H 2O) 2Mn 5O 10, and to a lesser extent.

Commonly associated minerals are pyrolusite, cryptomelane, manganite, psilomelane, quartz, feldspar and calcite.

Synonyms:

manganese, mineral, Mn, atomic number 25,

Antonyms:

organic,