Onyx

Tourmaline

Onyx Vs Tourmaline

Onyx

Tourmaline

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1 Astrology

1.1 Origin

Not Available

Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan

1.2 Color

White

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

1.3 Streak

Not Available

White

1.4 For which Rashi?

Capricorn

Libra

1.5 Planet

Saturn

Venus, Mars

1.6 Element of Planets

Not Available

Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Projective

1.9 Deities

Mars

Venus

1.10 Not to wear with

Not Available

1.11 Powers

Protection

Love, Courage

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Capricorn

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.55-2.702.85-3.35

1 7.18

2.5 Fracture

Not Available

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

Indiscernible

Indistinct

2.7 Mohs Hardness

6.5-77-7.5

2 10

2.8 Chemical Composition

SiO₂

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Not Available

typically moderate to strong

3.3 Dispersion

NA0.02

0.007 1

3.4 Transparency

Translucent, Opaque, Translucent to opaque

Transparent, Translucent, Transparent to opaque

3.5 Refractive Index

1.530-1.5431.614-1.666

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

3.8 Birefringence

Not Available0.014-0.040

0 0.296

3.9 Clarity

OpaqueHerve Nicolas Lazzarelli

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

Onyx Vs Tourmaline Fracture

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

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Onyx Vs Tourmaline Luster

A primary knowledge about Onyx vs Tourmaline 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. Onyx exhibits Vitreous luster. Tourmaline, on other hand, exhibits Vitreous luster.