Howlite

Calcite

Howlite Vs Calcite

Howlite

Calcite

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1 Astrology

1.1 Origin

Southern and central Africa

Mexico

1.2 Color

Blue, Colorless, White

White, Colorless, White, pink, Yellow, Brown

1.3 Streak

White

1.4 For which Rashi?

Gemini, Virgo, Gemini, Virgo, Gemini, Virgo

Cancer

1.5 Planet

Moon

Sun

1.6 Element of Planets

Earth

Earth, Sun

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Receptive

1.9 Deities

Quan Yin

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Spirituality, Healing

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

Brittle

2.2 Solubility

Not Available

Soluble

2.3 Durability

Not Available

2.4 Specific Gravity

2.45-2.582.67-2.73

1 7.18

2.5 Fracture

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

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

2.6 Cleavage

None

Perfect on [10 1 1] three directions with angle of 74° 55

2.7 Mohs Hardness

3-3.53

2 10

2.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

3 Optical Properties

3.1 Luster

Vitreous

Vitreous, Pearly

3.2 Pleochroism

NilArthur Thomas

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

Transparent, Translucent

3.5 Refractive Index

1.583-1.6081.486-1.658

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

monoclinic

Trigonal

3.8 Birefringence

0.0190.154-0.174

0 0.296

3.9 Clarity

Gemmological Tables (2004) More from other references

Transparent

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Howlite Vs Calcite Fracture

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

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Howlite Vs Calcite Luster

A primary knowledge about Howlite vs Calcite 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. Calcite, on other hand, exhibits Pearly and Vitreous luster.