Zirkelite

Template:Template other Zirkelite is an oxide mineral with the chemical formula Template:Chem2. It occurs as well-formed fine sized isometric crystals. It is a black, brown or yellow mineral with a hardness of 5.5 and a specific gravity of 4.7.

Name and discovery

Zirkelite was first discovered in Brazil in 1895. It was named for German petrographer Ferdinand Zirkel (1838–1912).

Occurrence

Initial discovery was from the Jacupiranga carbonatite, São Paulo, Brazil. It is also found in Canada, Kazakhstan, Norway, Russia, South Africa, the United Kingdom, and the United States.

See also

• List of minerals named after people

References

• Webmineral data
• Mindat localities
• Mineral Data Publishing