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Cordierite Iolite
Cordierite Iolite

Gahnospinel
Gahnospinel



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Cordierite Iolite
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Gahnospinel

Cordierite Iolite Vs Gahnospinel

Astrology

Origin

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

Color

Violet, Blue
Blue

Streak

-
-

For which Rashi?

-
Sagittarius, Scorpio

Planet

-
Pluto

Element of Planets

-
-

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

-
Hephaestus

Not to wear with

-
-

Powers

-
-

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.56-2.663.65-4.55
1 7.18
👆🏻

Fracture

Uneven, ConchoidalWalter Schumann
Conchoidal

Cleavage

Distinct
None, but may exhibit slight parting

Mohs Hardness

7-7.57.5-8
2 10
👆🏻

Chemical Composition

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Strong trichroism: colorless to yellowish
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.542-1.5781.735-1.790
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

-
Isometric

Birefringence

0.008-0.012-9999
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

Good
-

Reproductive

-
-

Digestive

-
-

Psychology

Inner vision
Empowerment

Healing

Emotional healing
-

Qualities Associated

Intuition
Transformation

Cordierite Iolite Vs Gahnospinel Fracture

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

Cordierite Iolite Vs Gahnospinel Luster

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