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Dumortierite
Dumortierite

Cryolite
Cryolite



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X
Dumortierite
X
Cryolite

Dumortierite Vs Cryolite

Astrology

Origin

Southern and central Africa
-

Color

Blue, Violet, Brown, White, Greenish, pink
Colorless, White, Brownish, Reddish, Black, gray, Brown

Streak

White
White

For which Rashi?

Leo, Sagittarius
-

Planet

Saturn
-

Element of Planets

Water
-

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

Isis
-

Not to wear with

-
-

Powers

Healing
-

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

3.26-3.412.97
1 7.18
👆🏻

Fracture

Fibrous, ConchoidalWalter Schumann
Uneven

Cleavage

Distinct on {100}, poor on {110}; parting on {001}
None observed

Mohs Hardness

7-8.52.5
2 10
👆🏻

Chemical Composition

AlAl6O3BSi3O18
Na 3AlF 6Ulrich Henn and Claudio C.

Optical Properties

Luster

Vitreous
Vitreous, Greasy, Pearly

Pleochroism

Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
colorless.

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Translucent, Translucent to opaque
-

Refractive Index

1.669-1.7231.338-1.339
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

0.011-0.0370.001
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

-
Supports heart health

Respiratory

Good
Good

Reproductive

-
-

Digestive

-
-

Psychology

Patience
Harmony

Healing

Emotional healing
Emotional healing

Qualities Associated

Patience
Peace

Dumortierite Vs Cryolite Fracture

Fracture is an important parameter when you compare Dumortierite and Cryolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Cryolite 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 Dumortierite is Fibrous and ConchoidalWalter Schumann. Cryolite fracture is Uneven.

Dumortierite Vs Cryolite Luster

A primary knowledge about Dumortierite vs Cryolite 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. Dumortierite exhibits Vitreous luster. Cryolite, on other hand, exhibits Vitreous, Greasy and Pearly luster.