Covellite

Apatite

Covellite Vs Apatite

Covellite

Apatite

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1 Astrology

1.1 Origin

Mexico

Mexico, USA, Canada, Madagascar, Spain, Russia, Sri Lanka, India, Burma, Color: green, greenish yellow, blue, violet, Hardness: 5, Refractive index: 1.60 1.67, Density: 3.17 3.35, Chemical composition: Phosphate composition, Crystal structure: hexagonal, Lustre: vitreous, Origins: Mexico, USA, Canada, Madagascar, Spain, Russia, Sri Lanka, India, brown, green, Yellow, violet, brown, green, Yellow, violet

1.2 Color

Blue, Blue, Black

Yellow, Green, Blue, Blue, Green, White, Yellow, Green, Red, Blue, Green, Colorless, Yellow, Blue, Violet, pink, Brown

1.3 Streak

Grey, Black, gray

White

1.4 For which Rashi?

Not Available

Gemini

1.5 Planet

Not Available

Mercury

1.6 Element of Planets

Not Available

Earth

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Projective

1.9 Deities

Not Available

Jupiter/Neptune

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Healing

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Flexible

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

4.6-4.763.16-3.23

1 7.18

2.5 Fracture

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

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven

2.6 Cleavage

Perfect on {0001}

[0001] indistinct, [1010] indistinct

2.7 Mohs Hardness

Not Available5

2 10

2.8 Chemical Composition

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

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

3 Optical Properties

3.1 Luster

Resinous

Vitreous

3.2 Pleochroism

Marked

Blue stones – strong

3.3 Dispersion

NA0.01

0.007 1

3.4 Transparency

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

Gemmological Tables (2004) More from other references

3.5 Refractive Index

1.45-2.621.628-1.651

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Hexagonal

3.8 Birefringence

Not Available0.002-0.008

0 0.296

3.9 Clarity

OpaqueAnthony et al

TransparentUlrich Henn and Claudio C. Milisenda

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 Apatite Fracture

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

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Covellite Vs Apatite Luster

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