How do I identify Potassic-arfvedsonite?

Potassic-arfvedsonite can be identified by its Black or dark blue-green color. Look for these key characteristics when examining specimens.

What color is Potassic-arfvedsonite?

Potassic-arfvedsonite typically appears in Black or dark blue-green. Color can vary depending on impurities and formation conditions.

Potassic-arfvedsonite

A variety of Minerals

What is Potassic-arfvedsonite?

Potassic-arfvedsonite Market Value Calculator

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

Potassic-arfvedsonite Localities Map

See where Potassic-arfvedsonite 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: Black or dark blue-green

Chemical Properties

Chemical Formula: [(K,Na)][Na2][Fe2+4Fe3+]Si8O22(OH)2 The arfvedsonite group minerals are sodium amphiboles defined with A(Na+K+2Ca)> 0.5 apfu and 0.5 apfu < C(Al+Fe3++2Ti) < 1.5 apfu with Fe as the dominant element in the C3+ position. Potassic-arfvedsonite is defined with A position: K dominant C2+ position: Fe dominant C3+ position: Fe dominant W position: (OH) dominant
Elements: Fe, H, K, Na, O, Si

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