Covellite

Bertrandite

Covellite Vs Bertrandite

Covellite

Bertrandite

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Astrology

Origin

Mexico

Southern and central Africa

Color

Blue, Black

Colorless, Yellow

Streak

Grey, Black, gray

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

Flexible

Solubility

Durability

Specific Gravity

4.6-4.762.59-2.60

1 7.18

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Fracture

Cleavage

Perfect on {0001}

{001} Perfect, {110} Distinct, {101} Distinct

Mohs Hardness

-99996-7

2 10

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Chemical Composition

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

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Resinous

Vitreous

Pleochroism

Marked

none.

Dispersion

0.080.01

0.005 1

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Transparency

OpaqueAnthony et al

TransparentAnthony et al

Refractive Index

1.45-2.621.583-1.614

1 3.25

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Optic Character

Crystal System

Hexagonal

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

Birefringence

-9999-9999

0 0.296

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Clarity

OpaqueAnthony et al

TransparentAnthony et al

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Promotes mental clarity

Respiratory

Good

Reproductive

Digestive

Psychology

Transformation

Harmony

Healing

Emotional healing

Qualities Associated

Manifestation

Creativity

Covellite Vs Bertrandite Fracture

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

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Covellite Vs Bertrandite Luster

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