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Sillimanite
Sillimanite

Annabergite
Annabergite



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Sillimanite
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Annabergite

Sillimanite Vs Annabergite

Astrology

Origin

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

Blue, Green, Brownish, Greenish, Colorless, gray
Green, Pale pink, White, rose, gray, Greenish, Yellow

Streak

White
Green, White

For which Rashi?

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Planet

-
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Element of Planets

-
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Energy

-
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How to Wear?

Finger

-
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Ring Metal

-
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Deities

-
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Not to wear with

-
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Powers

-
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Birthstone

Planetary

-
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Talisman

-
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Physical Properties

Tenacity

Tough
Sectile

Solubility

-
-

Durability

-
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Specific Gravity

3.20-3.263.07
1 7.18
👆🏻

Fracture

Splintery
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Cleavage

{010} perfect
Perfect on {010}, indistinct on {100} and {102}

Mohs Hardness

6-7.52
2 10
👆🏻

Chemical Composition

Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)
Ni3(AsO4)2•8(H2O)

Optical Properties

Luster

Vitreous, Subadamantine, Silky
Subadamantine, Pearly

Pleochroism

Colourless to pale brown to yellow
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Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
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Refractive Index

1.653-1.6851.622
1 3.25
👆🏻

Optic Character

-
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Crystal System

Orthorhombic
monoclinic

Birefringence

0.020-0.0220.065
0 0.296
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Clarity

Transparent
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Benefits

Physical

Neurological

-
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Cardiovascular

-
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Respiratory

Good
Poor

Reproductive

-
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Digestive

-
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Psychology

Creativity
Harmony

Healing

Emotional healing
Emotional healing

Qualities Associated

Creativity
Healing

Sillimanite Vs Annabergite Fracture

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

Sillimanite Vs Annabergite Luster

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