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Howlite
Howlite

Tanzanite
Tanzanite



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Howlite
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Tanzanite

Howlite Vs Tanzanite

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Astrology

Origin

Southern and central Africa
Tanzania

Color

Blue, Colorless, White
Blue

Streak

White
White, Colorless

For which Rashi?

Gemini, Virgo
Sagittarius, Pisces, Virgo

Planet

-
-

Element of Planets

Earth
Air, Water, Earth

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

Quan Yin
-

Not to wear with

-
-

Powers

-
Love, Healing

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
Hard

Specific Gravity

2.45-2.583.35
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Conchoidal

Cleavage

None
Perfect {010}, imperfect {100}

Mohs Hardness

3-3.56.5-7
2 10
👆🏻

Chemical Composition

Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca2Al3(SiO4)3(OH)

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Present

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

1.583-1.6081.685-1.707
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.0190.006-0.018
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Aids in mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

-
-

Respiratory

Good
Excellent

Reproductive

-
-

Digestive

-
-

Psychology

Calming
Intuition

Healing

Emotional healing
Emotional healing

Qualities Associated

Calming
Communication

Howlite Vs Tanzanite Fracture

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

Howlite Vs Tanzanite Luster

A primary knowledge about Howlite vs Tanzanite 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. Tanzanite, on other hand, exhibits Vitreous luster.