Proto-ferro-anthophyllite

A variety of Minerals

What is Proto-ferro-anthophyllite?

Proto-ferro-anthophyllite Market Value Calculator

Estimate the market value of Proto-ferro-anthophyllite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Proto-ferro-anthophyllite Localities Map

See where Proto-ferro-anthophyllite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

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North ZoneCentral RidgeSouth Basin

Quick Facts

Chemical Properties

Chemical Formula: ☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2 The anthophyllite group are orthorhombic amphiboles in the magnesium-iron-manganese amphibole subgroup. The minerals in this root name group may have either Pnma or Pnmn (proto- prefixed name) space group symmetry. The anthophyllite group's composition is defined with A(Na+K+2Ca)<0.5 apfu and C(Al+Fe3++2Ti)<1 apfu. Proto-ferro-anthophyllite has a Pnmn space group symmetry and is defined with Fe2+ as the dominant element both in the B and C positions.
Elements: Fe, H, O, Si

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