Alexandrite

Covellite

Alexandrite Vs Covellite

Alexandrite

Covellite

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Astrology

Origin

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

Mexico

Color

Green

Blue, Black

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

3.69-3.814.6-4.76

1 7.18

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Fracture

Cleavage

1,1 ; 3,2.

Perfect on {0001}

Mohs Hardness

8.5-9999

2 10

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Chemical Composition

BeAl ₂ O ₄

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

Optical Properties

Luster

Vitreous

Resinous

Pleochroism

Marked

Dispersion

0.020.08

0.005 1

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Transparency

Transparent, Transparent to nearly opaque

OpaqueAnthony et al

Refractive Index

1.739-1.7701.45-2.62

1 3.25

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Optic Character

Biaxial/+

Crystal System

Orthorhombic

Hexagonal

Birefringence

0.007-0.010-9999

0 0.296

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Clarity

Transparent

OpaqueAnthony et al

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Aids in grounding and protection

Supports heart health

Respiratory

Excellent

Good

Reproductive

Supports reproductive health

Digestive

Psychology

Transformation

Healing

Emotional healing

Qualities Associated

Transformation

Manifestation

Alexandrite Vs Covellite Fracture

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

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Alexandrite Vs Gahnospinel

Alexandrite Vs Covellite Luster

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