Hauerite

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

Hauerite is a sulfide mineral in the pyrite group. It is the mineral form of manganese disulfide MnS2. It forms reddish brown or black octahedral crystals with the pyrite structure and it is usually found associated with the sulfides of other transition metals such as rambergite.

Excerpt from the Wikipedia article “Hauerite”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: unknown, CC BY 2.0, via Wikimedia Commons.