Sillimanite

Azurite

Sillimanite Vs Azurite

Sillimanite

Azurite

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Astrology

Origin

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

Color

Blue, Green, Brownish, Greenish, Colorless, gray

Blue, Green

Streak

White

Blue

For which Rashi?

Sagittarius, Capricorn

Planet

Venus

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Psychic Power

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Tough

Brittle

Solubility

Durability

Specific Gravity

3.20-3.263.70-3.90

1 7.18

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Fracture

Splintery

Conchoidal

Cleavage

{010} perfect

Perfect on {011}, fair on {100}, poor on {110}

Mohs Hardness

6-7.53.5-4

2 10

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Chemical Composition

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

Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Vitreous, Subadamantine, Silky

Vitreous

Pleochroism

Colourless to pale brown to yellow

Visible shades of blue

Dispersion

0.020.03

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.653-1.6851.720-1.850

1 3.25

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Optic Character

Crystal System

Orthorhombic

monoclinic

Birefringence

0.020-0.0220.108

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Excellent

Reproductive

Supports reproductive health

Digestive

Psychology

Creativity

Insight

Healing

Emotional healing

Qualities Associated

Creativity

Insight

Sillimanite Vs Azurite Fracture

Fracture is an important parameter when you compare Sillimanite and Azurite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite Vs Azurite 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. Fracture observed in Sillimanite is Splintery. Azurite fracture is Conchoidal.

Compare Blue Gemstones

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Sillimanite Vs Azurite Luster

A primary knowledge about Sillimanite vs Azurite 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. Sillimanite exhibits Vitreous, Subadamantine and Silky luster. Azurite, on other hand, exhibits Vitreous luster.