Sillimanite

Smoky Quartz

Sillimanite Vs Smoky Quartz

Sillimanite

Smoky Quartz

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Astrology

Origin

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

Brazil, Kenya, Madagascar, Southern and central Africa

Color

Blue, Green, Brownish, Greenish, Colorless, gray

Brown, Black

Streak

White

For which Rashi?

Capricorn, Sagittarius

Planet

Saturn

Element of Planets

Earth

Energy

How to Wear?

Finger

Ring Metal

Deities

Nerthus

Not to wear with

Powers

Protection

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Tough

Brittle

Solubility

Durability

Specific Gravity

3.20-3.262.65

1 7.18

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Fracture

Splintery

Conchoidal, ConchoidalWalter Schumann

Cleavage

{010} perfect

{0110} Indistinct

Mohs Hardness

6-7.57

2 10

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Chemical Composition

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

SiO₂

Optical Properties

Luster

Vitreous, Subadamantine, Silky

Vitreous

Pleochroism

Colourless to pale brown to yellow

None

Dispersion

0.020.01

0.005 1

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Transparency

Transparent, Translucent

Transparent, Translucent, Transparent to translucent

Refractive Index

1.653-1.6851.544-1.553

1 3.25

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Optic Character

Crystal System

Orthorhombic

Hexagonal

Birefringence

0.020-0.0220.009

0 0.296

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Clarity

Transparent

Opaque

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Grounding

Healing

Emotional healing

Physical healing

Qualities Associated

Creativity

Grounding

Sillimanite Vs Smoky Quartz Fracture

Fracture is an important parameter when you compare Sillimanite and Smoky Quartz Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite Vs Smoky Quartz 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. Smoky Quartz fracture is Conchoidal and ConchoidalWalter Schumann.

Compare Blue Gemstones

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Sillimanite Vs Smoky Quartz Luster

A primary knowledge about Sillimanite vs Smoky Quartz 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. Smoky Quartz, on other hand, exhibits Vitreous luster.