Sugilite

Bertrandite

Sugilite Vs Bertrandite

Sugilite

Bertrandite

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1 Astrology

1.1 Origin

Canada, Southern and central Africa, Italy, Australia, India

Not Available, Southern and central Africa

1.2 Color

Violet, Brownish, Yellow, Reddish, Pale pink

Colorless, Colorless, Yellow

1.3 Streak

White

1.4 For which Rashi?

Virgo

Not Available

1.5 Planet

Mercury, Jupiter

Not Available

1.6 Element of Planets

Water

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Receptive

Not Available

1.9 Deities

The All

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

All

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

2.69-2.792.59-2.60

1 7.18

2.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Brittle, Metallic, Brittle, Metallic

2.6 Cleavage

Poor on {0001}

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

2.7 Mohs Hardness

5.5-6.56-7

2 10

2.8 Chemical Composition

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

NANA

0.007 1

3.4 Transparency

Translucent

TransparentAnthony et al, Handbook of mineralogy (2001)

3.5 Refractive Index

1.607-1.6121.583-1.614

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Hexagonal

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

3.8 Birefringence

0.003Not Available

0 0.296

3.9 Clarity

Translucent

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

Sugilite Vs Bertrandite Fracture

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

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Sugilite Vs Bertrandite Luster

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