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Home > Augite

Augite

Augite

Augite

Augite

Augite

Augite

A species of Clinopyroxene Subgroup, Also known as Violatite, Volcanic Shorl, Hedenbergite-Agirin

Augite is known for its luster and gets its name from the Greek word "augites," which means "brightness." It is often found amongst igneous and metamorphic rocks. Augite does not have properties that are commercially useful but is of interest to geologists and collectors.

Hardness:

5.5 - 6

Density:

3.19 - 3.56 g/cm³

General Info About Augite

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Physical Properties of Augite

Luster

Vitreous

Diaphaneity

Transparent to opaque

Colors

Brown-green, black, green-black, brown, purplish brown

Magnetism

Non-magnetic

Tenacity

Brittle

Cleavage

Good

Fracture

Conchoidal, Uneven

Streak

Greenish gray, light to dark brown

Crystal System

Monoclinic

Hardness

5.5 - 6 , Hard

Density

3.19 - 3.56 g/cm³, Normal Weight

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Chemical Properties of Augite

Chemical Classification

Silicates

Idealised Formula

(Ca, Mg, Fe)₂Si₂O₆

Formula

(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

Elements listed

Ca, Fe, Mg, O, Si

Common Impurities

Ti, Cr, Na, Mn, K

Optical Properties of Augite

Refractive Index

1.671-1.774

Pleochroism

Pale green/pale brown/green/greenish yellow, pale brown/pale yellow-green/violet, pale green/grayish green/violet

Optical Character

Biaxial positive

Discover the Value of Augite

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Rarity

Uncommon

Characteristics of Augite

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Common Questions People Also Ask

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What is augite used for?

Is augite a Clinopyroxene?

What type of silicate is augite?

Is augite metallic or nonmetallic?

How can you tell the difference between Hornitende and augite?

What does augite mean?

Is augite mafic or felsic?

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