Hematite

Lapis lazuli

Hematite Vs Lapis lazuli

Hematite

Lapis lazuli

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1 Astrology

1.1 Origin

Southern and central Africa

Afghanistan

1.2 Color

Black, Reddish, gray, Red

Violet, Blue, White

1.3 Streak

Black, Brown, Reddish, Red

Blue

1.4 For which Rashi?

Aries, Aquarius, Aries, Aquarius, Aries, Aquarius

Sagittarius

1.5 Planet

Saturn

Venus

1.6 Element of Planets

Not Available

Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Projective

Receptive

1.9 Deities

Mars

Venus

1.10 Not to wear with

Not Available

1.11 Powers

Healing

Protection, Courage

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Brittle

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

5.00-5.302.50-3.00

1 7.18

2.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

2.6 Cleavage

None, may show partings on {0001} and {10 1 1}

3,6

2.7 Mohs Hardness

65.5

2 10

2.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)₈Al₆Si₆O₂₄(S,SO)₄

3 Optical Properties

3.1 Luster

Not Available

Vitreous, Greasy

3.2 Pleochroism

O = brownish red; E = yellowish red

AbsentWalter Schumann

3.3 Dispersion

NANone

0.007 1

3.4 Transparency

OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references

Opaque

3.5 Refractive Index

2.690-3.2201.500-1.670

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

3.8 Birefringence

0.280Not Available

0 0.296

3.9 Clarity

OpaqueHerve Nicolas Lazzarelli

Gemstones of the world (2001)

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

Hematite Vs Lapis lazuli Fracture

Fracture is an important parameter when you compare Hematite and Lapis lazuli Physical Properties. It is necessary to understand the significance of these properties, before you compare Hematite Vs Lapis lazuli 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 Hematite is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven. Lapis lazuli fracture is ConchoidalWalter Schumann, Gemstones of the world (2001) and Uneven-Conchoidal.

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Hematite Vs Lapis lazuli Luster

A primary knowledge about Hematite vs Lapis lazuli 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. Lapis lazuli, on other hand, exhibits Greasy and Vitreous luster.