Bertrandite

Tourmaline

Bertrandite Vs Tourmaline

Bertrandite

Tourmaline

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1 Astrology

1.1 Origin

Not Available, Southern and central Africa

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

1.2 Color

Colorless, Colorless, Yellow

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

1.3 Streak

White

1.4 For which Rashi?

Not Available

Libra

1.5 Planet

Not Available

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

Not Available

Projective

1.9 Deities

Not Available

Venus

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Love, Courage

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.59-2.602.85-3.35

1 7.18

2.5 Fracture

Brittle, Metallic, Brittle, Metallic

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

{001} Perfect, {110} Distinct, {101} Distinct

Indistinct

2.7 Mohs Hardness

6-77-7.5

2 10

2.8 Chemical Composition

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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

none.

typically moderate to strong

3.3 Dispersion

NA0.02

0.007 1

3.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Transparent, Translucent, Transparent to opaque

3.5 Refractive Index

1.583-1.6141.614-1.666

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

Trigonal

3.8 Birefringence

Not Available0.014-0.040

0 0.296

3.9 Clarity

TransparentAnthony et al

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

Bertrandite Vs Tourmaline Fracture

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

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Bertrandite Vs Tourmaline Luster

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