Covellite

Alexandrite

Covellite Vs Alexandrite

Covellite

Alexandrite

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Astrology

Origin

Mexico

Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Origins: Russia

Color

Blue, Black

Green

Streak

Grey, Black, gray

For which Rashi?

Scorpio

Planet

Venus

Element of Planets

Earth

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Love

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Flexible

Solubility

Durability

Specific Gravity

4.6-4.763.69-3.81

1 7.18

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Fracture

Cleavage

Perfect on {0001}

1,1 ; 3,2.

Mohs Hardness

-99998.5

2 10

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Chemical Composition

CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

BeAl ₂ O ₄

Optical Properties

Luster

Resinous

Vitreous

Pleochroism

Marked

Dispersion

0.080.02

0.005 1

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Transparency

OpaqueAnthony et al

Transparent, Transparent to nearly opaque

Refractive Index

1.45-2.621.739-1.770

1 3.25

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Optic Character

Biaxial/+

Crystal System

Hexagonal

Orthorhombic

Birefringence

-99990.007-0.010

0 0.296

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Clarity

OpaqueAnthony et al

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Aids in grounding and protection

Respiratory

Good

Excellent

Reproductive

Supports reproductive health

Digestive

Psychology

Transformation

Healing

Emotional healing

Qualities Associated

Manifestation

Transformation

Covellite Vs Alexandrite Fracture

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

Compare Blue Gemstones

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Covellite Vs Alexandrite Luster

A primary knowledge about Covellite vs Alexandrite 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. Alexandrite, on other hand, exhibits Vitreous luster.