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Periclase
Periclase

Alunite
Alunite



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Periclase
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Alunite

Periclase Vs Alunite

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Astrology

Origin

Austria, Spain, Russia, Canada, Australia
Australia, Italy

Color

Colorless, Brownish, Yellow, Green, gray, White
Yellow, Red, Reddish, Brown, Colorless, White, 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
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

3.7-3.92.6-2.9
1 7.18
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Fracture

Conchoidal
Conchoidal, Uneven

Cleavage

{001} perfect; {111} imperfect, may exhibit parting on , {011}
On {0001}, perfect

Mohs Hardness

5.5-63.5-4
2 10
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Chemical Composition

MgOMichael O’Donoghue , Gems, Sixth Edition (2006)
KAl3(SO4)2(OH)6

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

-
-

Dispersion

0.010.02
0.005 1
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Transparency

TransparentWalter Schumann
-

Refractive Index

1.735-1.7381.572
1 3.25
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Optic Character

-
-

Crystal System

Isometric
Trigonal

Birefringence

-99990.020
0 0.296
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Clarity

TransparentWalter Schumann
-

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

-
Good

Reproductive

-
-

Digestive

-
-

Psychology

-
Stability

Healing

-
Emotional healing

Qualities Associated

-
Stability

Periclase Vs Alunite Fracture

Fracture is an important parameter when you compare Periclase and Alunite Physical Properties. It is necessary to understand the significance of these properties, before you compare Periclase Vs Alunite 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 Periclase is Conchoidal. Alunite fracture is Conchoidal and Uneven.

Periclase Vs Alunite Luster

A primary knowledge about Periclase vs Alunite 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. Periclase exhibits Vitreous luster. Alunite, on other hand, exhibits Vitreous and Pearly luster.