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Cordierite Iolite
Cordierite Iolite

Forsterite
Forsterite



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Cordierite Iolite
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Forsterite

Cordierite Iolite Vs Forsterite

Astrology

Origin

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

Color

Violet, Blue
Colorless, Green, Yellow, White

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

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.56-2.663.23-3.26
1 7.18
👆🏻

Fracture

Uneven, ConchoidalWalter Schumann
Conchoidal

Cleavage

Distinct
Perfect on {010} imperfect on {100}

Mohs Hardness

7-7.56.5-7
2 10
👆🏻

Chemical Composition

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

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Strong trichroism: colorless to yellowish
colorless.

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.542-1.5781.635-1.671
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

-
Orthorhombic

Birefringence

0.008-0.0120.033-0.042
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

Good
Good

Reproductive

-
Supports healthy digestion

Digestive

-
-

Psychology

Inner vision
Peace

Healing

Emotional healing
Physical healing

Qualities Associated

Intuition
Peace

Cordierite Iolite Vs Forsterite Fracture

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

Cordierite Iolite Vs Forsterite Luster

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