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Howlite
Howlite

Anhydrite
Anhydrite



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Howlite
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Anhydrite

Howlite Vs Anhydrite

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Astrology

Origin

Southern and central Africa
Mexico

Color

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

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

2.45-2.582.90-2.98
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

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

Mohs Hardness

3-3.53.5
2 10
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Chemical Composition

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

Optical Properties

Luster

Vitreous
Pearly, Greasy

Pleochroism

-
For violet varieties

Dispersion

0.010.01
0.005 1
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Transparency

-
Transparent

Refractive Index

1.583-1.6081.570-1.614
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.0190.042-0.044
0 0.296
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Clarity

-
Transparent

Benefits

Physical

Neurological

Aids in mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

-
Supports heart health

Respiratory

Good
Good

Reproductive

-
-

Digestive

-
-

Psychology

Calming
Calmness

Healing

Emotional healing
Emotional healing

Qualities Associated

Calming
Acceptance

Howlite Vs Anhydrite Fracture

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

Howlite Vs Anhydrite Luster

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