Sillimanite

Quartz

Sillimanite Vs Quartz

Sillimanite

Quartz

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Astrology

Origin

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

Brazil

Color

Blue, Green, Brownish, Greenish, Colorless, gray

Black, Colorless, Green, Violet, White, Yellow, Blue, Red, pink, Brown, gray

Streak

White

For which Rashi?

Taurus, Capricorn, Sagittarius

Planet

Venus

Element of Planets

Earth, Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Nerthus

Not to wear with

Powers

Healing, 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

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

Trigonal

Birefringence

0.020-0.0220.009

0 0.296

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Clarity

Transparent

Opaque

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Supports reproductive health

Digestive

Psychology

Creativity

Clarity

Healing

Emotional healing

Qualities Associated

Creativity

Clarity

Sillimanite Vs Quartz Fracture

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

Compare Blue Gemstones

Sillimanite Vs Tortoiseshell

Sillimanite Vs Verdite

Sillimanite Vs Violane

Sillimanite Vs Quartz Luster

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