How do I identify Proto-anthophyllite?

Proto-anthophyllite can be identified by its hardness of 6 on the Mohs scale, colourless to white color. Look for these key characteristics when examining specimens.

What color is Proto-anthophyllite?

Proto-anthophyllite typically appears in colourless to white. Color can vary depending on impurities and formation conditions.

How hard is Proto-anthophyllite?

Proto-anthophyllite has a hardness of 6 on the Mohs scale. This gives it moderate hardness.

Proto-anthophyllite

A variety of Minerals

What is Proto-anthophyllite?

Proto-anthophyllite Market Value Calculator

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

Proto-anthophyllite Localities Map

See where Proto-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

Physical Properties

Color: colourless to white
Hardness (Mohs): 6
Density: 2.98 g/cm³
Streak: white

Chemical Properties

Chemical Formula: ☐{Mg2}{Mg5}(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-anthophyllite is defined with Pnmm symmetry and Mg as the dominant element both in the B and C positions.
Elements: H, Mg, O, Si

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