Howlite

Andradite

Howlite Vs Andradite

Howlite

Andradite

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Astrology

Origin

Southern and central Africa

Italy, Russia

Color

Blue, Colorless, White

Colorless, Green, Black, Brown, Red, Greenish, Yellow, gray

Streak

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

2.45-2.583.70-4.10

1 7.18

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Fracture

Conchoidal

Conchoidal, Uneven

Cleavage

None

none

Mohs Hardness

3-3.56.5-7

2 10

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Chemical Composition

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

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Optical Properties

Luster

Vitreous

Adamantine, Resinous

Pleochroism

Dispersion

0.010.06

0.005 1

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Transparency

Transparent

Refractive Index

1.583-1.6081.88-1.94

1 3.25

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Optic Character

Crystal System

monoclinic

cubic

Birefringence

0.0190.057

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

Reproductive

Digestive

Psychology

Calming

Positivity

Healing

Emotional healing

Physical healing

Qualities Associated

Calming

Empowerment

Howlite Vs Andradite Fracture

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

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Howlite Vs Andradite Luster

A primary knowledge about Howlite vs Andradite 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. Andradite, on other hand, exhibits Adamantine and Resinous luster.