Phenakite

Sillimanite

Phenakite Vs Sillimanite

Phenakite

Sillimanite

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Astrology

Origin

USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka

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

Color

Colorless, Yellow, pink, Red

Blue, Green, Brownish, Greenish, Colorless, gray

Streak

White

For which Rashi?

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Tough

Solubility

Durability

Specific Gravity

2.90-2.983.20-3.26

1 7.18

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Fracture

Conchoidal, ConchoidalWalter Schumann

Splintery

Cleavage

Distinct on {11 2 0}, imperfect on {10 1 1}

{010} perfect

Mohs Hardness

7.5-86-7.5

2 10

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Chemical Composition

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Optical Properties

Luster

Vitreous

Vitreous, Subadamantine, Silky

Pleochroism

Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli

Colourless to pale brown to yellow

Dispersion

0.020.02

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.650-1.6951.653-1.685

1 3.25

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Optic Character

Crystal System

Trigonal

Orthorhombic

Birefringence

0.0160.020-0.022

0 0.296

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Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent

Benefits

Physical

Neurological

Cardiovascular

Supports heart health

Respiratory

Excellent

Good

Reproductive

Digestive

Psychology

Clarity

Creativity

Healing

Emotional healing

Qualities Associated

Spiritual Activation

Creativity

Phenakite Vs Sillimanite Fracture

Fracture is an important parameter when you compare Phenakite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Phenakite 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 Phenakite is Conchoidal and ConchoidalWalter Schumann. Sillimanite fracture is Splintery.

Compare Colorless Gems

Phenakite Vs Orthoclase

Phenakite Vs Oligoclase

Phenakite Vs Muscovite

Phenakite Vs Sillimanite Luster

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