Tourmaline

Opal

Tourmaline Vs Opal

Tourmaline

Opal

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1 Astrology

1.1 Origin

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

Ethiopia

1.2 Color

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

Yellow, White, Red, Brown, Blue

1.3 Streak

White

1.4 For which Rashi?

Libra

Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio

1.5 Planet

Venus, Mars

Mercury

1.6 Element of Planets

Water

Earth, Air, Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Projective

Projective, Receptive

1.9 Deities

Venus

Cupid

1.10 Not to wear with

Not Available

1.11 Powers

Love, Courage

Astral Projection, Psychicism

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

BrittleWalter Schumann

2.2 Solubility

Not Available

hot salt water

2.3 Durability

Not Available

2.4 Specific Gravity

2.85-3.351.98-2.25

1 7.18

2.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle

2.6 Cleavage

Indistinct

None

2.7 Mohs Hardness

7-7.55-6.5

2 10

2.8 Chemical Composition

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

SiO₂ · nH₂O

3 Optical Properties

3.1 Luster

Vitreous

Vitreous, Pearly

3.2 Pleochroism

typically moderate to strong

None

3.3 Dispersion

0.02None

0.007 1

3.4 Transparency

Transparent, Translucent, Transparent to opaque

Transparent, Translucent, Transparent to translucent

3.5 Refractive Index

1.614-1.6661.37-1.52

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

3.8 Birefringence

0.014-0.040Not 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

Tourmaline Vs Opal Fracture

Fracture is an important parameter when you compare Tourmaline and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs 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 Tourmaline is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Opal fracture is Brittle, Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references.

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Tourmaline Vs Opal Luster

A primary knowledge about Tourmaline vs 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. Tourmaline exhibits Vitreous luster. Opal, on other hand, exhibits Pearly and Vitreous luster.