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Andalusite
Andalusite

Sapphire
Sapphire



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Andalusite
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Sapphire

Andalusite Vs Sapphire

Astrology

Origin

Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA

Color

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

Streak

White
-

For which Rashi?

-
Pisces, Taurus, Gemini, Libra

Planet

Venus
Saturn

Element of Planets

-
Water

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

-
Apollo

Not to wear with

-
-

Powers

-
Psychic Power

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
-

Solubility

-
insoluble

Durability

-
-

Specific Gravity

3.05-3.213.95-4.03
1 7.18
👆🏻

Fracture

Uneven, Subconchoidal, Splintery
Uneven

Cleavage

Good on {110}, poor on {100}
None, but may exhibit parting

Mohs Hardness

7.59
2 10
👆🏻

Chemical Composition

Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
Al 2 O 3

Optical Properties

Luster

Vitreous, Greasy
Vitreous, Adamantine

Pleochroism

strongly trichroic
Strong

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent, Transparent to opaque

Refractive Index

1.627-1.6501.762-1.788
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.009-0.0100.008-0.009
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

Supports heart health
-

Respiratory

Excellent
Good

Reproductive

-
-

Digestive

-
-

Psychology

Perception
Intuition

Healing

Physical healing
Emotional healing

Qualities Associated

Self-Realization
Wisdom

Andalusite Vs Sapphire Fracture

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

Andalusite Vs Sapphire Luster

A primary knowledge about Andalusite vs Sapphire 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. Andalusite exhibits Vitreous and Greasy luster. Sapphire, on other hand, exhibits Vitreous and Adamantine luster.