Réf : BK845

Minéral cristallisé de pyrolusite de manganèse du Maroc

Manganese Pyrolusite - Morocco - crystal minerals 6.3 cm / 98g / BK845 - Vignette | 1001 minéraux

Manganese Pyrolusite - Morocco - crystal minerals 6.3 cm / 98g / BK845

: Reduced price
49,00 €: Comparative price

49,00 €: Normal price

PYROLUSITE belongs to the group of oxides. It contains manganese. It is a manganese oxide. Its chemical formula is MnO 2 .

It generally occurs in a massive form or as a coating of radiating acicular crystals, giving gray metallic reflections.

PYROLUSITE polianite is a variety of Pyrolusite that can have small black acicular crystals.

Pyrolusite's hardness is greater than 6/10 on the Mohs scale (10 for diamond) and its density varies between 4.5 and 5 (1 for water). The line on porcelain is black.

The name Pyrolusite comes from two Greek words pur and lusis which mean fire and decomposition because Pyrolusite dissolves in fire.

Unique piece - Contractual photos

Origin: crystal minerals from Morocco / Province of Ouarzazate / Imini Mine

Dimensions: 6.3 x 4.2 x 3.5 cm

Weight: 98 g