How do I identify Amakinite?

Amakinite can be identified by its hardness of 3.5 - 4 on the Mohs scale, Pale green to yellow-green; rapidly turns brown when exposed to air color. Look for these key characteristics when examining specimens.

What color is Amakinite?

Amakinite typically appears in Pale green to yellow-green; rapidly turns brown when exposed to air, due to formation of Fe(OH)3. Color can vary depending on impurities and formation conditions.

How hard is Amakinite?

Amakinite has a hardness of 3.5 - 4 on the Mohs scale. This gives it moderate hardness.

How to Identify Amakinite | Properties, Meaning & Uses

What is Amakinite?

Amakinite is a semi transparent yellow-green hydroxide mineral belonging to the brucite group that was discovered in 1962. Its chemical formula is written as (Fe,Mg)(OH)2. It usually occurs in the form of splotchy, anhedral crystals forming within a group or structure in other minerals or rocks, such as kimberlite. Its composition is as follows: Magnesium 5.82% Mg 9.66% MgO Manganese 6.58% Mn 8.50% MnO Iron 46.84% Fe 60.26% FeO Hydrogen 2.42% H 21.58% H2O Oxygen 38.34% O Amakinite is slightly magnetic and was named for the Amakin Expedition, which prospected the diamond deposits of Yakutia.

Amakinite Market Value Calculator

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

Amakinite Localities Map

See where Amakinite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview

North ZoneCentral RidgeSouth Basin

Quick Facts

Physical Properties

Color: Pale green to yellow-green; rapidly turns brown when exposed to air, due to formation of Fe(OH)3
Hardness (Mohs): 3.5 - 4
Density: 2.74 g/cm³