ETYMOLOGY: From the greek pir = fire and louis = yeast, as in ancient times was used to remove the greenish glass that gave him the presence of iron components.

CRYSTAL SYSTEM: Tetragonal.

PRINCIPLE OF FORMATION: Secondary.

CLASS MINERAL: Oxides.

CHEMICAL FORMULA, MINERAL ELEMENTS: MnO2.

HARDNESS: 6- 6.5 on the Mohs scale.

FIELDS: Germany, Ukraine, Czech Republic, India, Brazil, Namibia.

MINERALOGY: It usually occurs in almost all kinds of rocks and mineral deposits, as a result of alteration of minerals containing manganese, even if it is present by partially substituting another element or as an impurity. It occurs in hydrothermal veins, contains 63.2% manganese, the manganese dioxide is an oxide of manganese classified within the group of rutile, is often found associated with limonite, hematite, quartz, manganite, psilomelane and other mineral oxides of iron and manganese.

MYTHOLOGY: crystals up to 20 mm are known in Horní Blatná (Czech Republic). The pirolusita is very common throughout the world, and after a process of electrolysis is achieved by extracting manganese, the most representative of these minerals habit is dendritic with which they appear filling fractures or other planes of lithological discontinuity in almost all rocks.

PROPERTIES: The yellow and gold minerals exert a stimulatory effect and optimistic, bring luck, carelessness and vigor. We are aware of our needs and wants and helps to ward off damage, mentally removes tensions, black minerals provide security and stability and keeps them from mental deviations and focuses our attention on the essentials.

CHAKRAS: Sacral, solar plexus.

USES: Is manganese ore, used in many alloys such as bleach and dye in these glasses and ceramic products. mineral collection, meditation, jewelery.