×

Covellite
Covellite

Allanite
Allanite



ADD
Compare
X
Covellite
X
Allanite

Covellite Vs Allanite

Astrology

Origin

Mexico
Southern and central Africa

Color

Blue, Black
Brown, Black

Streak

Grey, Black, 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

Flexible
-

Solubility

-
-

Durability

-
-

Specific Gravity

4.6-4.763.40-4.20
1 7.18
👆🏻

Fracture

-
-

Cleavage

Perfect on {0001}
Indistinct

Mohs Hardness

-9999-9999
2 10
👆🏻

Chemical Composition

CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references
Ca(Ce,La,Y,Ca)Al2(Fe,Al)Si3O12(OH)

Optical Properties

Luster

Resinous
-

Pleochroism

Marked
-

Dispersion

0.080.02
0.005 1
👆🏻

Transparency

OpaqueAnthony et al
-

Refractive Index

1.45-2.621
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

-99990.013-0.036
0 0.296
👆🏻

Clarity

OpaqueAnthony et al
-

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

Supports heart health
Supports heart health

Respiratory

Good
Good

Reproductive

-
Supports reproductive health

Digestive

-
-

Psychology

Transformation
Empowerment

Healing

Emotional healing
Emotional healing

Qualities Associated

Manifestation
Inspiration

Covellite Vs Allanite Fracture

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

Covellite Vs Allanite Luster

A primary knowledge about Covellite vs Allanite 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. Covellite exhibits Resinous luster.