Howlite

Sugilite

Howlite Vs Sugilite

Howlite

Sugilite

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Astrology

Origin

Southern and central Africa

Canada, Southern and central Africa, Italy, Australia, India

Color

Blue, Colorless, White

Violet, Brownish, Yellow, Reddish, Pale pink

Streak

White

For which Rashi?

Gemini, Virgo

Virgo

Planet

Mercury, Jupiter

Element of Planets

Earth

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Quan Yin

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.45-2.582.69-2.79

1 7.18

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Fracture

Conchoidal

Cleavage

None

Poor on {0001}

Mohs Hardness

3-3.55.5-6.5

2 10

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Chemical Composition

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

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Vitreous

Pleochroism

Weak

Dispersion

0.010.02

0.005 1

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Transparency

Translucent

Refractive Index

1.583-1.6081.607-1.612

1 3.25

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Optic Character

Crystal System

monoclinic

Hexagonal

Birefringence

0.0190.003

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Aids in mental clarity and focus

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Excellent

Reproductive

Digestive

Psychology

Calming

Spirituality

Healing

Emotional healing

Qualities Associated

Calming

Spiritual Protection

Howlite Vs Sugilite Fracture

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

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Howlite Vs Sugilite Luster

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