Sapphire

Andalusite

Sapphire Vs Andalusite

Sapphire

Andalusite

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1 Astrology

1.1 Origin

Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA

Spain, Brazil, USA, Sri Lanka, Burma, Color: strongly pleochroic, reddish brown, pink / yellowish green, Hardness: 7 7.5, Refractive index: 1.63 1.65, Density: 3.13 3.21, Chemical composition: Al2SiO5, Crystal structure: orthorhombic, Lustre: vitreous, greasy, Origins: Spain, Brazil, USA, Sri Lanka, Burma. Discovered in Andalusia (Spain), the andalusite stone is relatively rare, with big crystals over 10 ct. especially rare. Due to its remarkable pleochroism effect, the stone is highly valued by collectors., brown

1.2 Color

Colorless, Yellow, Green, Violet, White, Colorless, Blue, Red, Green, Yellow, pink

Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red

1.3 Streak

Not Available

White

1.4 For which Rashi?

Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra

All

1.5 Planet

Saturn

Venus

1.6 Element of Planets

Water

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Receptive

Projective, Receptive

1.9 Deities

Apollo

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Psychic Power, Prosperity

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

insoluble

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.95-4.033.05-3.21

1 7.18

2.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

2.6 Cleavage

None, but may exhibit parting

Good on {110}, poor on {100}

2.7 Mohs Hardness

97.5

2 10

2.8 Chemical Composition

Al ₂ O ₃

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

3 Optical Properties

3.1 Luster

Vitreous, Adamantine, Vitreous, Adamantine

Vitreous, Greasy

3.2 Pleochroism

Strong

strongly trichroic

3.3 Dispersion

0.020.02

0.007 1

3.4 Transparency

Transparent, Translucent, Transparent to opaque

Transparent, Translucent

3.5 Refractive Index

1.762-1.7881.627-1.650

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

Orthorhombic

3.8 Birefringence

0.008-0.0090.009-0.010

0 0.296

3.9 Clarity

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

Sapphire Vs Andalusite Fracture

Fracture is an important parameter when you compare Sapphire and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sapphire Vs Andalusite 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 Sapphire is Gems, Sixth Edition (2006), Uneven and Uneven. Andalusite fracture is Gemstones (2009), Splintery, Subconchoidal, Subconchoidal, Uneven, Uneven and UnevenArthur Thomas.

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Sapphire Vs Andalusite Luster

A primary knowledge about Sapphire vs Andalusite 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. Sapphire exhibits Adamantine, Adamantine, Vitreous and Vitreous luster. Andalusite, on other hand, exhibits Greasy and Vitreous luster.