Sillimanite

Fluorite

Sillimanite Vs Fluorite

Sillimanite

Fluorite

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Astrology

Origin

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

Southern and central Africa, Switzerland

Color

Blue, Green, Brownish, Greenish, Colorless, gray

Red, Brown, Green, Yellow, Blue, Colorless, Pale pink, White, Black, pink

Streak

White

For which Rashi?

Scorpio, Aquarius, Pisces

Planet

Neptune

Element of Planets

Water, Air

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Tough

Brittle

Solubility

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

3.20-3.263.00-3.25

1 7.18

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Fracture

Splintery

Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

{010} perfect

Octahedral, perfect on {111}, parting on {011}

Mohs Hardness

6-7.54

2 10

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Chemical Composition

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

CaF₂

Optical Properties

Luster

Vitreous, Subadamantine, Silky

Vitreous

Pleochroism

Colourless to pale brown to yellow

Dispersion

0.020.01

0.005 1

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Transparency

Transparent, Translucent

Transparent, Translucent, Transparent to translucent

Refractive Index

1.653-1.6851.432-1.436

1 3.25

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Optic Character

Crystal System

Orthorhombic

cubic

Birefringence

0.020-0.022-9999

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Supports digestive health

Psychology

Creativity

Focus

Healing

Emotional healing

Qualities Associated

Creativity

Protection

Sillimanite Vs Fluorite Fracture

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

Compare Blue Gemstones

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Sillimanite Vs Fluorite Luster

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