Aragonite

Black Opal

Aragonite Vs Black Opal

Aragonite

Black Opal

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1 Astrology

1.1 Origin

Canada, Pakistan

Australia

1.2 Color

Reddish, Greenish, White, Red, Yellow, Green, Grey, Blue, Brown, Colorless, gray, orange

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

1.3 Streak

White

Not Available

1.4 For which Rashi?

Virgo, Capricorn

Not Available

1.5 Planet

Sun

Not Available

1.6 Element of Planets

Earth

Not Available

1.7 Energy

Projective, Receptive

Not Available

1.8 How to Wear?

1.8.1 Finger

Not Available

1.8.2 Ring Metal

Not Available

1.9 Deities

Goddess

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Protection

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Brittle

Not Available

2.2 Solubility

Dilute acid

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.93-2.961.97-2.22

1 7.18

2.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

Distinct on {010}, imperfect {110} and {011}

Not Available

2.7 Mohs Hardness

3.5-46-6.5

2 10

2.8 Chemical Composition

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO 2 + H 2OUlrich Henn and Claudio C.

3 Optical Properties

3.1 Luster

Vitreous, Resinous

Not Available

3.2 Pleochroism

StrongArthur Thomas

AbsentWalter Schumann

3.3 Dispersion

NANone

0.007 1

3.4 Transparency

Transparent, Translucent

3.5 Refractive Index

1.525-1.6861.370-1.470

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

Not Available

3.8 Birefringence

0.155Not Available

0 0.296

3.9 Clarity

Transparent

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

Aragonite Vs Black Opal Fracture

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

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Aragonite Vs Black Opal Luster

A primary knowledge about Aragonite vs Black Opal 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. Aragonite exhibits Vitreous and Resinous luster.