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Cordierite Iolite
Cordierite Iolite

Bytownite
Bytownite



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Cordierite Iolite
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Bytownite

Cordierite Iolite Vs Bytownite

Astrology

Origin

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

Color

Violet, Blue
Colorless, White, gray

Streak

-
White

For which Rashi?

-
-

Planet

-
-

Element of Planets

-
-

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

-
-

Not to wear with

-
-

Powers

-
-

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.56-2.662.72-2.75
1 7.18
👆🏻

Fracture

Uneven, ConchoidalWalter Schumann
Uneven

Cleavage

Distinct
Perfect on [001], good on [010], imperfect on [110]

Mohs Hardness

7-7.56-6.5
2 10
👆🏻

Chemical Composition

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Strong trichroism: colorless to yellowish
colorless.

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.542-1.5781.561-1.583
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

-
Triclinic

Birefringence

0.008-0.0120.010-0.011
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

Good
Poor

Reproductive

-
-

Digestive

-
-

Psychology

Inner vision
Clarity

Healing

Emotional healing
Emotional healing

Qualities Associated

Intuition
Clarity

Cordierite Iolite Vs Bytownite Fracture

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

Cordierite Iolite Vs Bytownite Luster

A primary knowledge about Cordierite Iolite vs Bytownite 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. Cordierite Iolite exhibits Vitreous luster. Bytownite, on other hand, exhibits Vitreous and Pearly luster.