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Gahnite
Gahnite

Caledonite
Caledonite



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Gahnite
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Caledonite

Gahnite Vs Caledonite

Astrology

Origin

Australia
USA

Color

Blue, Green, Greenish, Black
Blue, Green

Streak

Grey, gray
Blue, Greenish, 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

-
-

Durability

-
-

Specific Gravity

4.00-4.625.6-5.76
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Uneven

Cleavage

Indistinct parting on [111]
[001] perfect; [100] distinct

Mohs Hardness

7.5-82.5-3
2 10
👆🏻

Chemical Composition

ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Weak

Dispersion

0.030.05
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.790-1.8181.818-1.909
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Orthorhombic

Birefringence

-99990.091
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

-
-

Respiratory

Aids in digestion and soothes the stomach
Good

Reproductive

-
-

Digestive

-
-

Psychology

Protection
Creativity

Healing

Emotional healing
-

Qualities Associated

Harmony
-

Gahnite Vs Caledonite Fracture

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

Gahnite Vs Caledonite Luster

A primary knowledge about Gahnite vs Caledonite 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. Gahnite exhibits Vitreous luster. Caledonite, on other hand, exhibits Vitreous luster.