Howlite

Crystal Opal

Howlite Vs Crystal Opal

Howlite

Crystal Opal

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1 Astrology

1.1 Origin

Southern and central Africa

Australia

1.2 Color

Blue, Colorless, White

White, Colorless, Yellow

1.3 Streak

White

Not Available

1.4 For which Rashi?

Gemini, Virgo, Gemini, Virgo, Gemini, Virgo

Not Available

1.5 Planet

Moon

Not Available

1.6 Element of Planets

Earth

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

Quan Yin

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.45-2.581.97-2.22

1 7.18

2.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

None

Not Available

2.7 Mohs Hardness

3-3.55.5-6.5

2 10

1.5 Chemical Composition

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

SiO 2 + H 2OUlrich Henn and Claudio C.

2 Optical Properties

2.1 Luster

Vitreous

Not Available

2.2 Pleochroism

NilArthur Thomas

AbsentWalter Schumann

2.3 Dispersion

NANone

0.007 1

2.4 Transparency

Gemmological Tables (2004) More from other references

Transparent

2.5 Refractive Index

1.583-1.6081.370-1.

1 3.25

2.6 Optic Character

Not Available

2.7 Crystal System

monoclinic

Not Available

2.8 Birefringence

0.019Not Available

0 0.296

2.9 Clarity

Gemmological Tables (2004) More from other references

Transparent

3 Benefits

3.1 Physical

3.1.1 Neurological

Not Available

3.1.2 Cardiovascular

Not Available

3.1.3 Respiratory

Not Available

3.1.4 Reproductive

Not Available

3.1.5 Digestive

Not Available

3.2 Psychology

Not Available

3.3 Healing

Not Available

3.4 Qualities Associated

Not Available

Howlite Vs Crystal Opal Fracture

Fracture is an important parameter when you compare Howlite and Crystal Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite Vs Crystal Opal 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 Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas. Crystal Opal fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).

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Howlite Vs Crystal Opal Luster

A primary knowledge about Howlite vs Crystal Opal 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.