Bertrandite

Tortoiseshell

Bertrandite Vs Tortoiseshell

Bertrandite

Tortoiseshell

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1 Astrology

1.1 Origin

Not Available, Southern and central Africa

Southern and central Africa

1.2 Color

Colorless, Colorless, Yellow

Brown, Red, Green, Blue, Violet

1.3 Streak

White

Not Available

1.4 For which Rashi?

Not Available

1.5 Planet

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

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

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

2.59-2.601.25-1.35

1 7.18

2.5 Fracture

Brittle, Metallic, Brittle, Metallic

Not Available

2.6 Cleavage

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

Not Available

2.7 Mohs Hardness

6-7Not Available

2 10

2.8 Chemical Composition

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

Not Available

3 Optical Properties

3.1 Luster

Vitreous

Not Available

3.2 Pleochroism

none.

Not Available

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Gemmological Tables (2004)

3.5 Refractive Index

1.583-1.6141.540-1.560

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

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

Not Available

3.8 Birefringence

Not AvailableNot Available

0 0.296

3.9 Clarity

TransparentAnthony et al

OpaqueUlrich Henn and Claudio C. Milisenda

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 Tortoiseshell Fracture

Fracture is an important parameter when you compare Bertrandite and Tortoiseshell Physical Properties. It is necessary to understand the significance of these properties, before you compare Bertrandite Vs Tortoiseshell 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.

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Bertrandite Vs Tortoiseshell Luster

A primary knowledge about Bertrandite vs Tortoiseshell 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.