Alexandrite

Howlite

Alexandrite Vs Howlite

Alexandrite

Howlite

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Astrology

Origin

Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Origins: Russia

Southern and central Africa

Color

Green

Blue, Colorless, White

Streak

White

For which Rashi?

Scorpio

Gemini, Virgo

Planet

Venus

Element of Planets

Earth

Energy

How to Wear?

Finger

Ring Metal

Deities

Quan Yin

Not to wear with

Powers

Love

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.69-3.812.45-2.58

1 7.18

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Fracture

Conchoidal

Cleavage

1,1 ; 3,2.

None

Mohs Hardness

8.53-3.5

2 10

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Chemical Composition

BeAl ₂ O ₄

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

Optical Properties

Luster

Vitreous

Pleochroism

Dispersion

0.020.01

0.005 1

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Transparency

Transparent, Transparent to nearly opaque

Refractive Index

1.739-1.7701.583-1.608

1 3.25

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Optic Character

Biaxial/+

Crystal System

Orthorhombic

monoclinic

Birefringence

0.007-0.0100.019

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Aids in mental clarity and focus

Cardiovascular

Aids in grounding and protection

Respiratory

Excellent

Good

Reproductive

Supports reproductive health

Digestive

Psychology

Transformation

Calming

Healing

Emotional healing

Qualities Associated

Transformation

Calming

Alexandrite Vs Howlite Fracture

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

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Alexandrite Vs Howlite Luster

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