Blue John

Sugilite

Blue John Vs Sugilite

Blue John

Sugilite

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1 Astrology

1.1 Origin

Not Available

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

1.2 Color

White, Colorless, Blue, Red, Green, Yellow, Violet

Violet, Brownish, Yellow, Reddish, Pale pink

1.3 Streak

Not Available

White

1.4 For which Rashi?

Not Available

Virgo

1.5 Planet

Not Available

Mercury, Jupiter

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

Receptive

1.9 Deities

Not Available

The All

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

All

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

3.00-3.252.69-2.79

1 7.18

2.5 Fracture

Not Available

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

2.6 Cleavage

Not Available

Poor on {0001}

2.7 Mohs Hardness

Not Available5.5-6.5

2 10

2.8 Chemical Composition

CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

3 Optical Properties

3.1 Luster

Not Available

Vitreous

3.2 Pleochroism

Not Available

Weak

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent

Translucent

3.5 Refractive Index

1.432-1.4361.607-1.612

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Not Available

Hexagonal

3.8 Birefringence

Not Available0.003

0 0.296

3.9 Clarity

Transparent

Translucent

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

Blue John Vs Sugilite Fracture

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

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Blue John Vs Sugilite Luster

A primary knowledge about Blue John vs Sugilite 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, on other hand, exhibits Vitreous luster.