Sillimanite

Phenakite

Sillimanite Vs Phenakite

Sillimanite

Phenakite

Add ⊕

Astrology

Origin

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

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

Color

Blue, Green, Brownish, Greenish, Colorless, gray

Colorless, Yellow, pink, Red

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

Tough

Brittle

Solubility

Durability

Specific Gravity

3.20-3.262.90-2.98

1 7.18

👆🏻

Fracture

Splintery

Conchoidal, ConchoidalWalter Schumann

Cleavage

{010} perfect

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

Mohs Hardness

6-7.57.5-8

2 10

👆🏻

Chemical Composition

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

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

Optical Properties

Luster

Vitreous, Subadamantine, Silky

Vitreous

Pleochroism

Colourless to pale brown to yellow

Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli

Dispersion

0.020.02

0.005 1

👆🏻

Transparency

Transparent, Translucent

Refractive Index

1.653-1.6851.650-1.695

1 3.25

👆🏻

Optic Character

Crystal System

Orthorhombic

Trigonal

Birefringence

0.020-0.0220.016

0 0.296

👆🏻

Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Cardiovascular

Supports heart health

Respiratory

Good

Excellent

Reproductive

Digestive

Psychology

Creativity

Clarity

Healing

Emotional healing

Qualities Associated

Creativity

Spiritual Activation

Sillimanite Vs Phenakite Fracture

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

Compare Blue Gemstones

Sillimanite Vs Tortoiseshell

Sillimanite Vs Verdite

Sillimanite Vs Violane

Sillimanite Vs Phenakite Luster

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