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Nepheline
Nepheline

Polyhalite
Polyhalite



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X
Nepheline
X
Polyhalite

Nepheline Vs Polyhalite

Astrology

Origin

Canada
Austria

Color

White, Reddish, gray, Brown, Brownish
Colorless, White, Red, gray, pink

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

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.55-2.652.78
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
Conchoidal

Cleavage

[1010] Poor
Perfect on {10 1 }; parting on {010}

Mohs Hardness

5-63.5
2 10
👆🏻

Chemical Composition

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
K2Ca2Mg(SO4)4·2H2O

Optical Properties

Luster

Vitreous, Greasy
Vitreous, Resinous

Pleochroism

-
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.529-1.5471.546-1.548
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Triclinic

Birefringence

0.003-0.0040.021
0 0.296
👆🏻

Clarity

Transparent
-

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

-
Good

Reproductive

-
-

Digestive

-
-

Psychology

-
-

Healing

-
Physical healing

Qualities Associated

Clarity
Emotional Healing

Nepheline Vs Polyhalite Fracture

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

Nepheline Vs Polyhalite Luster

A primary knowledge about Nepheline vs Polyhalite 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. Polyhalite, on other hand, exhibits Vitreous and Resinous luster.