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Fluorite
Fluorite

Sillimanite
Sillimanite



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Fluorite
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Sillimanite

Fluorite Vs Sillimanite

Astrology

Origin

Southern and central Africa, Switzerland
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil

Color

Red, Brown, Green, Yellow, Blue, Colorless, Pale pink, White, Black, pink
Blue, Green, Brownish, Greenish, Colorless, gray

Streak

White
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

Brittle
Tough

Solubility

slightly water soluble and in hot hydrochloric acid
-

Durability

-
-

Specific Gravity

3.00-3.253.20-3.26
1 7.18
👆🏻

Fracture

Subconchoidal, Uneven, ConchoidalWalter Schumann
Splintery

Cleavage

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

Mohs Hardness

46-7.5
2 10
👆🏻

Chemical Composition

CaF2
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous
Vitreous, Subadamantine, Silky

Pleochroism

-
Colourless to pale brown to yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Translucent, Transparent to translucent
Transparent, Translucent

Refractive Index

1.432-1.4361.653-1.685
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Orthorhombic

Birefringence

-99990.020-0.022
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

-
-

Respiratory

Good
Good

Reproductive

-
-

Digestive

Supports digestive health
-

Psychology

Focus
Creativity

Healing

Emotional healing
Emotional healing

Qualities Associated

Protection
Creativity

Fluorite Vs Sillimanite Fracture

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

Fluorite Vs Sillimanite Luster

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