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Cordierite Iolite
Cordierite Iolite

Phlogopite
Phlogopite



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Cordierite Iolite
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Phlogopite

Cordierite Iolite Vs Phlogopite

Astrology

Origin

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

Color

Violet, Blue
Brownish, Red, Brown, Green, White, gray, Yellow, Reddish

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

-
Tough

Solubility

-
-

Durability

-
-

Specific Gravity

2.56-2.662.78-2.85
1 7.18
👆🏻

Fracture

Uneven, ConchoidalWalter Schumann
Uneven

Cleavage

Distinct
Perfect basal (001)

Mohs Hardness

7-7.52-2.5
2 10
👆🏻

Chemical Composition

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
KMg3(Si3Al)O10(F,OH)2

Optical Properties

Luster

Vitreous
Pearly

Pleochroism

Strong trichroism: colorless to yellowish
-

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.542-1.5781.530-1.573
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

-
monoclinic

Birefringence

0.008-0.0120.0280-0.0450
0 0.296
👆🏻

Clarity

Transparent
-

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

Good
-

Reproductive

-
-

Digestive

-
-

Psychology

Inner vision
Self-discovery

Healing

Emotional healing
Emotional healing

Qualities Associated

Intuition
Awareness

Cordierite Iolite Vs Phlogopite Fracture

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

Cordierite Iolite Vs Phlogopite Luster

A primary knowledge about Cordierite Iolite vs Phlogopite 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. Phlogopite, on other hand, exhibits Pearly luster.