Gypsum

Howlite

Gypsum Vs Howlite

Gypsum

Howlite

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1 Astrology

1.1 Origin

Mexico

Southern and central Africa

1.2 Color

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

Blue, Colorless, White

1.3 Streak

White

1.4 For which Rashi?

Not Available

Gemini, Virgo, Gemini, Virgo, Gemini, Virgo

1.5 Planet

Not Available

Moon

1.6 Element of Planets

Not Available

Earth

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

Quan Yin

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

Flexible

Not Available

2.2 Solubility

Soluble

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.20-2.402.45-2.58

1 7.18

2.5 Fracture

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

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

2.6 Cleavage

Perfect on {010}, distinct on {100}

None

2.7 Mohs Hardness

23-3.5

2 10

2.8 Chemical Composition

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

Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

3 Optical Properties

3.1 Luster

Vitreous, Silky, Pearly, Waxy

Vitreous

3.2 Pleochroism

None

NilArthur Thomas

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent, Translucent

Gemmological Tables (2004) More from other references

3.5 Refractive Index

1.521-1.5311.583-1.608

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

monoclinic

3.8 Birefringence

0.0100.019

0 0.296

3.9 Clarity

Transparent

Gemmological Tables (2004) More from other references

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

Gypsum Vs Howlite Fracture

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

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Gypsum Vs Howlite Luster

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