Topaz

Bertrandite

Topaz Vs Bertrandite

Topaz

Bertrandite

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1 Astrology

1.1 Origin

Brazil, Madagascar, Russia, USA, Mexico, Pakistan, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia

Not Available, Southern and central Africa

1.2 Color

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

Colorless, Colorless, Yellow

1.3 Streak

White

1.4 For which Rashi?

Sagittarius

Not Available

1.5 Planet

Sun

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Projective

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Healing, Love, Money

Not Available

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

3.49-3.572.59-2.60

1 7.18

2.5 Fracture

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

Brittle, Metallic, Brittle, Metallic

2.6 Cleavage

[001] Perfect

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

2.7 Mohs Hardness

86-7

2 10

2.8 Chemical Composition

Al₂SiO₄(F,OH)₂

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

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Weak

none.

3.3 Dispersion

0.01NA

0.007 1

3.4 Transparency

Transparent

TransparentAnthony et al, Handbook of mineralogy (2001)

3.5 Refractive Index

1.606-1.6441.583-1.614

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

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

3.8 Birefringence

0.008-0.011Not Available

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TransparentAnthony et al

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

Topaz Vs Bertrandite Fracture

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

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Topaz Vs Bertrandite Luster

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