Sillimanite

Amethyst

Sillimanite Vs Amethyst

Sillimanite

Amethyst

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1 Astrology

1.1 Origin

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

USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Color: violet, purple-violet, Hardness: 7, Refractive index: 1.54 1.55, Density: 2.65 2.66, Chemical composition: SiO2, Crystal structure: hexagonal, Lustre: vitreous, Origins: Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, USA, East Africa, Zambia, Namibia, Madagascar, India, Sri Lanka, Russia, Brazil, Uruguay, Bolivia, Argentina, Australia, Brazil, Uruguay, Bolivia, Argentina, Australia

1.2 Color

Blue, Green, Brownish, Greenish, Colorless, gray

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

1.3 Streak

White

1.4 For which Rashi?

Not Available

Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Receptive

1.9 Deities

Not Available

Diana

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Love, Courage

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Tough

Not Available

2.2 Solubility

Not Available

insoluble in common solvents

2.3 Durability

Not Available

2.4 Specific Gravity

3.20-3.26

2.65

2.5 Fracture

Splintery

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

2.6 Cleavage

{010} perfect

Indiscernible

2.7 Mohs Hardness

6-7.5

2.8 Chemical Composition

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

SiO₂

3 Optical Properties

3.1 Luster

Vitreous, Subadamantine, Silky

Vitreous

3.2 Pleochroism

Colourless to pale brown to yellow

None

3.3 Dispersion

Albite

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▼

Not Available

Rank: N/A (Overall)▶

0.01

Rank: 27 (Overall)▶

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Fluorite

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▶

0.044 (Anglesite)

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3.4 Transparency

Transparent, Translucent

Transparent, Transparent to translucent

3.5 Refractive Index

1.653-1.685

1.544-1.553

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

Trigonal

3.8 Birefringence

0.020-0.022

0.009

3.9 Clarity

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

Sillimanite Vs Amethyst Fracture

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

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Sillimanite Vs Amethyst Luster

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