How do I identify Kyanite?

Kyanite can be identified by its hardness of 4.5 to 7 on the Mohs scale, Blue color. Look for these key characteristics when examining specimens.

What color is Kyanite?

Kyanite typically appears in Blue, green, white, gray, yellow, or colorless. Color can vary depending on impurities and formation conditions.

Kyanite has a hardness of 4.5 to 7 on the Mohs scale. This gives it moderate hardness.

Kyanite

Easy to obtain

What is Kyanite?

Kyanite is a typically blue silicate mineral commonly found in metamorphic aluminum-rich pegmatites and/or sedimentary rock. It is characterized by its bladed crystal structure and variable hardness depending on the crystallographic direction. Kyanite is often used as a gemstone and in industrial applications.

Uses & Applications

Kyanite is used in high-temperature industrial applications including refractory materials, ceramics, and spark plugs. High-grade specimens are valued by collectors and used in jewelry, though its varying hardness makes cutting challenging.

Healing Properties

Kyanite is believed to align all chakras and promote tranquility and calm communication. It is thought to enhance psychic abilities, aid in meditation, and facilitate dream recall while promoting logical thought.

Optical Properties

Refractive Index: 1.710 - 1.730
Birefringence: 0.016 - 0.020
Pleochroism: Strong, in blue stones: deep blue / colorless to pale blue / pale blue
Optical Character: biaxial (-)
Dispersion: 0.020

Discover Values

Rarity

3.2out of 5.0

64%

Popularity

3.8out of 5.0

76%

Beauty

4.6out of 5.0

92%

Excellent

Cultural Value

4.0out of 5.0

80%

Collection Value

4.3out of 5.0

86%

Perfect for decorative uses and jewelry

This stone excels in beauty.

Kyanite Market Value Calculator

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

Kyanite Localities Map

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

Map preview

North ZoneCentral RidgeSouth Basin

The Meaning

Kyanite has been associated with communication, psychic abilities, and spiritual alignment. It is believed to promote logical thinking and healing, never needing cleansing as it does not hold negative energy.

Geochemistry

Kyanite forms during regional metamorphism of aluminum-rich sedimentary rocks under high pressure conditions. It is a polymorph of andalusite and sillimanite, forming at higher pressures than these related minerals.