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Anhydrite
Anhydrite

Howlite
Howlite



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Anhydrite
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Howlite

Anhydrite Vs Howlite

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Astrology

Origin

Mexico
Southern and central Africa

Color

Colorless, Blue, Violet, White, Brown, rose, gray
Blue, Colorless, White

Streak

White
White

For which Rashi?

-
Gemini, Virgo

Planet

-
-

Element of Planets

-
Earth

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

-
Quan Yin

Not to wear with

-
-

Powers

-
-

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.90-2.982.45-2.58
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
None

Mohs Hardness

3.53-3.5
2 10
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Chemical Composition

CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Pearly, Greasy
Vitreous

Pleochroism

For violet varieties
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent
-

Refractive Index

1.570-1.6141.583-1.608
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

0.042-0.0440.019
0 0.296
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Clarity

Transparent
-

Benefits

Physical

Neurological

Enhances mental clarity and focus
Aids in mental clarity and focus

Cardiovascular

Supports heart health
-

Respiratory

Good
Good

Reproductive

-
-

Digestive

-
-

Psychology

Calmness
Calming

Healing

Emotional healing
Emotional healing

Qualities Associated

Acceptance
Calming

Anhydrite Vs Howlite Fracture

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

Anhydrite Vs Howlite Luster

A primary knowledge about Anhydrite 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. Anhydrite exhibits Pearly and Greasy luster. Howlite, on other hand, exhibits Vitreous luster.