Pearl

Sillimanite

Pearl Vs Sillimanite

Pearl

Sillimanite

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1 Astrology

1.1 Origin

Australia

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

1.2 Color

Green, Blue

Blue, Green, Brownish, Greenish, Colorless, gray

1.3 Streak

White

1.4 For which Rashi?

Cancer, Gemini, Cancer, Gemini, Cancer, Gemini

Not Available

1.5 Planet

Moon

Not Available

1.6 Element of Planets

Water

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Receptive

Not Available

1.9 Deities

Venus

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Protection, Love, Money

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

Tough

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.60-2.853.20-3.26

1 7.18

2.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

Splintery

2.6 Cleavage

none

{010} perfect

2.7 Mohs Hardness

2.5-4.56-7.5

2 10

2.8 Chemical Composition

Not Available

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

3 Optical Properties

3.1 Luster

Pearly

Vitreous, Subadamantine, Silky

3.2 Pleochroism

AbsentWalter Schumann

Colourless to pale brown to yellow

3.3 Dispersion

NoneNA

0.007 1

3.4 Transparency

Translucent, Opaque

Transparent, Translucent

3.5 Refractive Index

1.52-1.661.653-1.685

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

3.8 Birefringence

0.1560.020-0.022

0 0.296

3.9 Clarity

Translucent

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

Pearl Vs Sillimanite Fracture

Fracture is an important parameter when you compare Pearl and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pearl Vs Sillimanite 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 Pearl is Gemstones of the world (2001), Gemstones of the world (2001) and UnevenWalter Schumann. Sillimanite fracture is Splintery.

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Pearl Vs Sillimanite Luster

A primary knowledge about Pearl vs Sillimanite 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. Pearl exhibits Pearly luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.