Sugilite

Cordierite Iolite

Sugilite Vs Cordierite Iolite

Sugilite

Cordierite Iolite

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Astrology

Origin

Canada, Southern and central Africa, Italy, Australia, India

Canada, Madagascar, Southern and central Africa, Sri Lanka, USA

Color

Violet, Brownish, Yellow, Reddish, Pale pink

Violet, Blue

Streak

White

For which Rashi?

Virgo

Planet

Mercury, Jupiter

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.69-2.792.56-2.66

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann

Cleavage

Poor on {0001}

Distinct

Mohs Hardness

5.5-6.57-7.5

2 10

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Chemical Composition

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Optical Properties

Luster

Vitreous

Pleochroism

Weak

Strong trichroism: colorless to yellowish

Dispersion

0.020.02

0.005 1

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Transparency

Translucent

Transparent

Refractive Index

1.607-1.6121.542-1.578

1 3.25

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Optic Character

Biaxial/+

Crystal System

Hexagonal

Birefringence

0.0030.008-0.012

0 0.296

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Clarity

Translucent

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Excellent

Good

Reproductive

Digestive

Psychology

Spirituality

Inner vision

Healing

Emotional healing

Qualities Associated

Spiritual Protection

Intuition

Sugilite Vs Cordierite Iolite Fracture

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

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Sugilite Vs Cordierite Iolite Luster

A primary knowledge about Sugilite vs Cordierite Iolite 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. Sugilite exhibits Vitreous luster. Cordierite Iolite, on other hand, exhibits Vitreous luster.