Blue John

Vlasovite

Blue John Vs Vlasovite

Blue John

Vlasovite

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Astrology

Origin

Russia

Color

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

Colorless, Brownish

Streak

White

For which Rashi?

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Nearly insoluble in HCl and HNO₃

Durability

Specific Gravity

3.00-3.252.97

1 7.18

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Fracture

Conchoidal

Cleavage

Perfect

Distinct on {010}

Mohs Hardness

-99996

2 10

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Chemical Composition

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

Optical Properties

Luster

Greasy, Vitreous, Pearly

Pleochroism

(x): colorless. (y): colorless. (z): colorless.

Dispersion

0.020.01

0.005 1

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Transparency

Transparent

Refractive Index

1.432-1.4361.607

1 3.25

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Optic Character

Crystal System

monoclinic

Birefringence

-9999-9999

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Excellent

Reproductive

Digestive

Psychology

Harmony

Healing

Emotional healing

Physical healing

Qualities Associated

Mental Clarity

Protection

Blue John Vs Vlasovite Fracture

Fracture is an important parameter when you compare Blue John and Vlasovite Physical Properties. It is necessary to understand the significance of these properties, before you compare Blue John Vs Vlasovite 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. Vlasovite fracture is Conchoidal.

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Blue John Vs Vlasovite Luster

A primary knowledge about Blue John vs Vlasovite 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. Vlasovite, on other hand, exhibits Greasy, Vitreous and Pearly luster.