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Cordierite Iolite
Cordierite Iolite

Phenakite
Phenakite



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Cordierite Iolite
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Phenakite

Cordierite Iolite Vs Phenakite

Astrology

Origin

Canada, Madagascar, Southern and central Africa, Sri Lanka, USA
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka

Color

Violet, Blue
Colorless, Yellow, pink, Red

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

2.56-2.662.90-2.98
1 7.18
👆🏻

Fracture

Uneven, ConchoidalWalter Schumann
Conchoidal, ConchoidalWalter Schumann

Cleavage

Distinct
Distinct on {11 2 0}, imperfect on {10 1 1}

Mohs Hardness

7-7.57.5-8
2 10
👆🏻

Chemical Composition

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Strong trichroism: colorless to yellowish
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.542-1.5781.650-1.695
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

-
Trigonal

Birefringence

0.008-0.0120.016
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

-
-

Cardiovascular

-
Supports heart health

Respiratory

Good
Excellent

Reproductive

-
-

Digestive

-
-

Psychology

Inner vision
Clarity

Healing

Emotional healing
Emotional healing

Qualities Associated

Intuition
Spiritual Activation

Cordierite Iolite Vs Phenakite Fracture

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

Cordierite Iolite Vs Phenakite Luster

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