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Sapphire
Sapphire

Blue John
Blue John



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Sapphire
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Blue John

Sapphire Vs Blue John

Astrology

Origin

Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
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Color

Colorless, Yellow, Green, Violet, White, Blue, Red, pink
White, Colorless, Blue, Red, Green, Yellow, Violet

Streak

-
-

For which Rashi?

Pisces, Taurus, Gemini, Libra
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Planet

Saturn
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Element of Planets

Water
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Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

Apollo
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Not to wear with

-
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Powers

Psychic Power
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Birthstone

Planetary

-
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Talisman

-
-

Physical Properties

Tenacity

-
-

Solubility

insoluble
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Durability

-
-

Specific Gravity

3.95-4.033.00-3.25
1 7.18
👆🏻

Fracture

Uneven
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Cleavage

None, but may exhibit parting
Perfect

Mohs Hardness

9-9999
2 10
👆🏻

Chemical Composition

Al 2 O 3
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous, Adamantine
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Pleochroism

Strong
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Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent, Translucent, Transparent to opaque
Transparent

Refractive Index

1.762-1.7881.432-1.436
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
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Birefringence

0.008-0.009-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

-
Supports heart health

Respiratory

Good
Excellent

Reproductive

-
-

Digestive

-
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Psychology

Intuition
Harmony

Healing

Emotional healing
Emotional healing

Qualities Associated

Wisdom
Mental Clarity

Sapphire Vs Blue John Fracture

Fracture is an important parameter when you compare Sapphire and Blue John Physical Properties. It is necessary to understand the significance of these properties, before you compare Sapphire Vs Blue John 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 Sapphire is Uneven.

Sapphire Vs Blue John Luster

A primary knowledge about Sapphire vs Blue John 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. Sapphire exhibits Vitreous and Adamantine luster.