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Alunite
Alunite

Gedrite
Gedrite



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Alunite
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Gedrite

Alunite Vs Gedrite

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Astrology

Origin

Australia, Italy
Southern and central Africa

Color

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

Streak

White
gray, 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
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.6-2.93.15-3.259
1 7.18
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Fracture

Conchoidal, Uneven
-

Cleavage

On {0001}, perfect
Gedrite   Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.

Mohs Hardness

3.5-45.5-6
2 10
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Chemical Composition

KAl3(SO4)2(OH)6
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
Weak to moderate

Dispersion

0.020.02
0.005 1
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Transparency

-
Transparent

Refractive Index

1.5721.625-1.718
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.020-9999
0 0.296
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Clarity

-
Transparent

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

Good
-

Reproductive

-
-

Digestive

-
-

Psychology

Stability
Focus

Healing

Emotional healing
-

Qualities Associated

Stability
Protection

Alunite Vs Gedrite Fracture

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

Alunite Vs Gedrite Luster

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