Corundum

Sillimanite

Facts about Corundum and Sillimanite

Corundum

Sillimanite

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1 Astrology

1.1 Origin

Southern and central Africa

USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil

1.2 Color

Violet, Blue, Red, Yellow, Brown, gray

Blue, Green, Brownish, Greenish, Colorless, gray

1.3 Streak

White, None

White

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Brittle

Tough

2.2 Solubility

insoluble

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.90-4.053.20-3.26

1 7.18

2.5 Fracture

Uneven, Uneven, Gems, Difficult, Fibrous

Splintery

2.6 Cleavage

None – parting in 3 directions

{010} perfect

2.7 Mohs Hardness

96-7.5

2 10

2.8 Chemical Composition

Al 2O 3Arthur Thomas , Gemstones (2009)

Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

3 Optical Properties

3.1 Luster

Adamantine, Vitreous

Vitreous, Subadamantine, Silky

3.2 Pleochroism

None

Colourless to pale brown to yellow

3.3 Dispersion

0.02NA

0.007 1

3.4 Transparency

Transparent, Translucent

3.5 Refractive Index

1.758-1.7801.653-1.685

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

Orthorhombic

3.8 Birefringence

0.007-0.0100.020-0.022

0 0.296

3.9 Clarity

Gemmological Tables (2004) More from other references

Transparent

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Corundum Vs Sillimanite Specifications

While buying, there is a common bewilderment that most of the buyers face. As you compare Corundum Vs Sillimanite specifications, it helps you to decide which gemstone suits your zodiac sign. Besides, the extent to which a gemstone benefits you can be understood after comparing Corundum and Sillimanite Astrology. Its highly necessary to have a basic knowledge of facts about Corundum and Sillimanite, before you finalize to buy one.

Corundum is known to regulate the influence of Not Available planet. Sillimanite, the unique gem is known to regulate the influence of Not Available planet.