Ajoite

Sillimanite

Ajoite Vs Sillimanite

Ajoite

Sillimanite

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Astrology

Origin

Southern and central Africa, Zimbabwe, South Africa

USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil

Color

Green, Blue

Blue, Green, Brownish, Greenish, Colorless, gray

Streak

Greenish, White

White

For which Rashi?

Virgo

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Gaia

Not to wear with

Powers

Healing

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Tough

Solubility

Decomposed by acids

Durability

Specific Gravity

2.963.20-3.26

1 7.18

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Fracture

Splintery

Cleavage

Perfect on {010}

{010} perfect

Mohs Hardness

56-7.5

2 10

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Chemical Composition

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous

Vitreous, Subadamantine, Silky

Pleochroism

X: very light bluish green; Y and Z: brilliant bluish green

Colourless to pale brown to yellow

Dispersion

0.040.02

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.5501.653-1.685

1 3.25

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Optic Character

Crystal System

Triclinic

Orthorhombic

Birefringence

0.0910.020-0.022

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Peace

Creativity

Healing

Emotional healing

Qualities Associated

Harmony

Creativity

Ajoite Vs Sillimanite Fracture

Fracture is an important parameter when you compare Ajoite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Ajoite Vs Sillimanite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Sillimanite fracture is Splintery.

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Ajoite Vs Sillimanite Luster

A primary knowledge about Ajoite vs Sillimanite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Ajoite exhibits Vitreous luster. Sillimanite, on other hand, exhibits Vitreous, Subadamantine and Silky luster.