Covellite

Polyhalite

Covellite Vs Polyhalite

Covellite

Polyhalite

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1 Astrology

1.1 Origin

Mexico

Austria

1.2 Color

Blue, Blue, Black

Colorless, White, Red, gray, pink

1.3 Streak

Grey, Black, gray

White

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Flexible

Brittle

2.2 Solubility

Not Available

Soluble

2.3 Durability

Not Available

2.4 Specific Gravity

4.6-4.762.78

1 7.18

2.5 Fracture

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

Conchoidal, Brittle

2.6 Cleavage

Perfect on {0001}

Perfect on {10 1 }; parting on {010}

2.7 Mohs Hardness

Not Available3.5

2 10

2.8 Chemical Composition

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

Not Available

3 Optical Properties

3.1 Luster

Resinous

Vitreous, Resinous

3.2 Pleochroism

Marked

Not Available

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references

Not Available

3.5 Refractive Index

1.45-2.621.546-1.548

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Hexagonal

Triclinic

3.8 Birefringence

Not Available0.021

0 0.296

3.9 Clarity

OpaqueAnthony et al

Not Available

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Covellite Vs Polyhalite Fracture

Fracture is an important parameter when you compare Covellite and Polyhalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Polyhalite 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 Covellite is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas. Polyhalite fracture is Brittle and Conchoidal.

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Covellite Vs Polyhalite Luster

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