Zircon

Howlite

Zircon Vs Howlite

Zircon

Howlite

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Astrology

Origin

Tanzania, Kenya, Madagascar, Cambodia, Sri Lanka, Burma, Thailand, Vietnam, Australia

Southern and central Africa

Color

Blue, Green, Yellow, Brown, White, Colorless, Red, pink, Reddish, gray

Blue, Colorless, White

Streak

White

For which Rashi?

Sagittarius, Virgo

Gemini, Virgo

Planet

Jupiter

Element of Planets

Earth, Water

Earth

Energy

How to Wear?

Finger

Ring Metal

Deities

Apollo

Quan Yin

Not to wear with

Powers

Protection

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

3.93-4.732.45-2.58

1 7.18

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Fracture

Conchoidal, Uneven

Conchoidal

Cleavage

{110} and {111}

None

Mohs Hardness

7.53-3.5

2 10

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Chemical Composition

ZrSiO₄

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

Optical Properties

Luster

Adamantine

Vitreous

Pleochroism

Weak

Dispersion

0.040.01

0.005 1

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Transparency

Transparent

Refractive Index

1.810-2.0241.583-1.608

1 3.25

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Optic Character

Crystal System

tetragonal

monoclinic

Birefringence

0.047-0.0550.019

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Aids in mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Clarity

Calming

Healing

Physical healing

Emotional healing

Qualities Associated

Calming

Zircon Vs Howlite Fracture

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

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Zircon Vs Howlite Luster

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