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Nepheline
Nepheline

Common Opal
Common Opal



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Nepheline
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Common Opal

Nepheline Vs Common Opal

Astrology

Origin

Canada
Southern and central Africa

Color

White, Reddish, gray, Brown, Brownish
White, Colorless, Blue, Red, Green, Yellow, Violet

Streak

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

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.55-2.651.98-2.50
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
Conchoidal

Cleavage

[1010] Poor
None

Mohs Hardness

5-65.5-6.5
2 10
👆🏻

Chemical Composition

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Optical Properties

Luster

Vitreous, Greasy
-

Pleochroism

-
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
Translucent

Refractive Index

1.529-1.5471.37-1.52
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.003-0.004-9999
0 0.296
👆🏻

Clarity

Transparent
Translucent

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

-
Good

Reproductive

-
-

Digestive

-
-

Psychology

-
Creativity

Healing

-
Emotional healing

Qualities Associated

Clarity
Creativity

Nepheline Vs Common Opal Fracture

Fracture is an important parameter when you compare Nepheline and Common Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Common Opal 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 Nepheline is Subconchoidal and Conchoidal. Common Opal fracture is Conchoidal.

Nepheline Vs Common Opal Luster

A primary knowledge about Nepheline vs Common Opal 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. Nepheline exhibits Vitreous and Greasy luster.