Zircon

Sillimanite

Zircon Vs Sillimanite

Zircon

Sillimanite

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Astrology

Origin

Tanzania, Kenya, Madagascar, Cambodia, Sri Lanka, Burma, Thailand, Vietnam, Australia

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

Color

Blue, Green, Yellow, Brown, White, Colorless, Red, pink, Reddish, gray

Blue, Green, Brownish, Greenish, Colorless, gray

Streak

White

For which Rashi?

Sagittarius, Virgo

Planet

Jupiter

Element of Planets

Earth, Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Apollo

Not to wear with

Powers

Protection

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Tough

Solubility

insoluble

Durability

Specific Gravity

3.93-4.733.20-3.26

1 7.18

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Fracture

Conchoidal, Uneven

Splintery

Cleavage

{110} and {111}

{010} perfect

Mohs Hardness

7.56-7.5

2 10

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Chemical Composition

ZrSiO₄

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

Optical Properties

Luster

Adamantine

Vitreous, Subadamantine, Silky

Pleochroism

Weak

Colourless to pale brown to yellow

Dispersion

0.040.02

0.005 1

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Transparency

Transparent

Transparent, Translucent

Refractive Index

1.810-2.0241.653-1.685

1 3.25

👆🏻

Optic Character

Crystal System

tetragonal

Orthorhombic

Birefringence

0.047-0.0550.020-0.022

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Clarity

Creativity

Healing

Physical healing

Emotional healing

Qualities Associated

Creativity

Zircon Vs Sillimanite Fracture

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

Compare Gems for Virgo

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Zircon Vs Sillimanite Luster

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