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Caledonite
Caledonite

Cordierite Iolite
Cordierite Iolite



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Caledonite
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Cordierite Iolite

Caledonite Vs Cordierite Iolite

Astrology

Origin

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

Color

Blue, Green
Violet, Blue

Streak

Blue, Greenish, White
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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
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Solubility

-
-

Durability

-
-

Specific Gravity

5.6-5.762.56-2.66
1 7.18
👆🏻

Fracture

Uneven
Uneven, ConchoidalWalter Schumann

Cleavage

[001] perfect; [100] distinct
Distinct

Mohs Hardness

2.5-37-7.5
2 10
👆🏻

Chemical Composition

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Weak
Strong trichroism: colorless to yellowish

Dispersion

0.050.02
0.005 1
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Transparency

Transparent
Transparent

Refractive Index

1.818-1.9091.542-1.578
1 3.25
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Optic Character

-
Biaxial/+

Crystal System

Orthorhombic
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Birefringence

0.0910.008-0.012
0 0.296
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Clarity

Transparent
Transparent

Benefits

Physical

Neurological

-
-

Cardiovascular

-
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Respiratory

Good
Good

Reproductive

-
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Digestive

-
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Psychology

Creativity
Inner vision

Healing

-
Emotional healing

Qualities Associated

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Intuition

Caledonite Vs Cordierite Iolite Fracture

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

Caledonite Vs Cordierite Iolite Luster

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