Sillimanite

Peridot

Sillimanite Vs Peridot

Sillimanite

Peridot

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Astrology

Origin

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

China, Burma, Pakistan, USA, Southern and central Africa, Brazil

Color

Blue, Green, Brownish, Greenish, Colorless, gray

Green

Streak

White

None

For which Rashi?

Libra, Taurus, Leo, Virgo

Planet

Element of Planets

Earth

Energy

How to Wear?

Finger

Ring Metal

Deities

Isis

Not to wear with

Powers

Protection

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Tough

Solubility

Durability

Specific Gravity

3.20-3.261.54-1.55

1 7.18

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Fracture

Splintery

Conchoidal

Cleavage

{010} perfect

Poor

Mohs Hardness

6-7.56.5-7

2 10

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Chemical Composition

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

(Mg,Fe)₂SiO₄

Optical Properties

Luster

Vitreous, Subadamantine, Silky

Vitreous, Greasy

Pleochroism

Colourless to pale brown to yellow

Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli

Dispersion

0.020.02

0.005 1

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Transparency

Transparent, Translucent

Transparent

Refractive Index

1.653-1.6851.64-1.69

1 3.25

👆🏻

Optic Character

Crystal System

Orthorhombic

Birefringence

0.020-0.0220.036

0 0.296

👆🏻

Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Supports reproductive health

Digestive

Psychology

Creativity

Harmony

Healing

Emotional healing

Physical healing

Qualities Associated

Creativity

Health

Sillimanite Vs Peridot Fracture

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

Compare Blue Gemstones

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Sillimanite Vs Peridot Luster

A primary knowledge about Sillimanite vs Peridot 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. Peridot, on other hand, exhibits Vitreous and Greasy luster.