How do I identify Augelite?

Augelite can be identified by its hardness of 4.5 - 5 on the Mohs scale, White color, Pearly, Vitreous, Resinous, Sub-vitreous luster, Monoclinic crystal system. Look for these key characteristics when examining specimens.

What color is Augelite?

Augelite typically appears in White, colourless, pale yellow, light green, rarely blue, pink, colourless in transmitted light. Color can vary depending on impurities and formation conditions.

How hard is Augelite?

Augelite has a hardness of 4.5 - 5 on the Mohs scale. This gives it moderate hardness.

Augelite

A variety of Minerals

Rare

What is Augelite?

Augelite is a rare mineral that is semi-transparent and may take on several hues, ranging from blue to pink to green or colorless. Augelite crystals may be large enough to cut gemstones out of, but because the stone is both soft and brittle, it is rarely of interest to anyone beyond collectors.

Etymology & Origins

It was first described by Christian Wilhelm Blomstrand for an occurrence in Västanå iron mine at Scania, Sweden in 1868 and derives its name from the Greek αύγή in reference to its pearly lustre.

Uses & Applications

Augelite does not have many industrial or household uses. However, because it is commonly found in ore deposits, it can be an apt indicator of other important rocks and minerals, including metallic minerals like hematite and pyrite. Occasionally it may be carved and used as a gemstone.

Optical Properties

Refractive Index: 1.570-1.591
Birefringence: 0.020-0.021
Pleochroism: None
Optical Character: Biaxial positive

Augelite Market Value Calculator

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

Augelite Localities Map

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

Map preview

North ZoneCentral RidgeSouth Basin

Key Characteristics

Formation of Augelite

It occurs as a product of metamorphism of phosphate bearing peraluminous sediments and in high-temperature hydrothermal ore deposits. It occurs in association with attakolite, svanbergite, lazulite, hematite, trolleite, berlinite, rutile, pyrophyllite, baryte, arsenopyrite, stannite, pyrite, andorite, cassiterite and zinkenite.

Quick Facts

Physical Properties

Color: White, colourless, pale yellow, light green, rarely blue, pink, colourless in transmitted light
Hardness (Mohs): 4.5 - 5
Density: 2.704 g/cm³
Streak: White
Luster: Pearly, Vitreous, Resinous, Sub-vitreous
Crystal System: Monoclinic