Blue John

Gypsum

Blue John Vs Gypsum

Blue John

Gypsum

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1 Astrology

1.1 Origin

Not Available

Mexico

1.2 Color

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

Colorless, White, Colorless, Greenish, Brown, White, Colorless, Greenish, Brown, White, Colorless, Greenish, Brown

1.3 Streak

Not Available

White

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

Flexible

2.2 Solubility

Not Available

Soluble

2.3 Durability

Not Available

2.4 Specific Gravity

3.00-3.252.20-2.40

1 7.18

2.5 Fracture

Not Available

Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)

2.6 Cleavage

Not Available

Perfect on {010}, distinct on {100}

2.7 Mohs Hardness

Not Available2

2 10

2.8 Chemical Composition

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

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

3 Optical Properties

3.1 Luster

Not Available

Vitreous, Silky, Pearly, Waxy

3.2 Pleochroism

Not Available

None

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent

Transparent, Translucent

3.5 Refractive Index

1.432-1.4361.521-1.531

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Not Available

monoclinic

3.8 Birefringence

Not Available0.010

0 0.296

3.9 Clarity

Transparent

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 Gypsum Fracture

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

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Blue John Vs Gypsum Luster

A primary knowledge about Blue John vs Gypsum 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. Gypsum, on other hand, exhibits Pearly, Silky, Vitreous and Waxy luster.