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Apophyllite KF
Apophyllite KF

Sillimanite
Sillimanite



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Apophyllite KF
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Sillimanite

Apophyllite KF Vs Sillimanite

Astrology

Origin

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

Color

Colorless, White, Yellow, Green, pink, Violet
Blue, Green, Brownish, Greenish, Colorless, gray

Streak

White
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

2.33-2.373.20-3.26
1 7.18
👆🏻

Fracture

Uneven
Splintery

Cleavage

Perfect on {001}, imperfect on {110}
{010} perfect

Mohs Hardness

4.5-56-7.5
2 10
👆🏻

Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Subadamantine, Silky

Pleochroism

-
Colourless to pale brown to yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.530-1.5361.653-1.685
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Orthorhombic

Birefringence

-99990.020-0.022
0 0.296
👆🏻

Clarity

-
Transparent

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

Good
Good

Reproductive

-
-

Digestive

-
-

Psychology

Clarity
Creativity

Healing

Emotional healing
Emotional healing

Qualities Associated

Spiritual Awakening
Creativity

Apophyllite KF Vs Sillimanite Fracture

Fracture is an important parameter when you compare Apophyllite KF and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Apophyllite KF 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 Apophyllite KF is Uneven. Sillimanite fracture is Splintery.

Apophyllite KF Vs Sillimanite Luster

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