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Oligoclase
Oligoclase

Gahnite
Gahnite



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Oligoclase
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Gahnite

Oligoclase Vs Gahnite

Astrology

Origin

Southern and central Africa
Australia

Color

Colorless, Brown, Greenish, gray
Blue, Green, Greenish, Black

Streak

White
Grey, gray

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

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.62-2.674.00-4.62
1 7.18
👆🏻

Fracture

Uneven
Conchoidal, Uneven

Cleavage

From the Greek, oligos and kasein, little cleavage.
Indistinct parting on [111]

Mohs Hardness

6-6.57.5-8
2 10
👆🏻

Chemical Composition

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.538-1.5501.790-1.818
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
cubic

Birefringence

0.010-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Enhances mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

-
-

Respiratory

-
Aids in digestion and soothes the stomach

Reproductive

-
-

Digestive

-
-

Psychology

Harmony
Protection

Healing

Emotional healing
Emotional healing

Qualities Associated

Harmony
Harmony

Oligoclase Vs Gahnite Fracture

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

Oligoclase Vs Gahnite Luster

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