Alexandrite

Tourmaline

Alexandrite Vs Tourmaline

Alexandrite

Tourmaline

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1 Astrology

1.1 Origin

Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Color: color change, from bluish green (daylight) to purple, red or brown (incandescent light), Hardness: 8, Refractive index: 1.74 1.77, Density: 3.68 3.80, Chemical composition: BeAl2O4, Crystal structure: orthorhombic, Origins: Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma

Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan

1.2 Color

Green

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

1.3 Streak

Not Available

White

1.4 For which Rashi?

Scorpio

Libra

1.5 Planet

Venus

Venus, Mars

1.6 Element of Planets

Earth

Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Projective, Receptive

Projective

1.9 Deities

Not Available

Venus

1.10 Not to wear with

Not Available

1.11 Powers

Love

Love, Courage

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

3.69-3.812.85-3.35

1 7.18

2.5 Fracture

Not Available

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

1,1 ; 3,2.

Indistinct

2.7 Mohs Hardness

8.57-7.5

2 10

2.8 Chemical Composition

BeAl ₂ O ₄

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Not Available

typically moderate to strong

3.3 Dispersion

NA0.02

0.007 1

3.4 Transparency

Transparent, Transparent to nearly opaque

Transparent, Translucent, Transparent to opaque

3.5 Refractive Index

1.739-1.7701.614-1.666

1 3.25

3.6 Optic Character

Biaxial/+

Not Available

3.7 Crystal System

Orthorhombic

Trigonal

3.8 Birefringence

0.007-0.0100.014-0.040

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

Alexandrite Vs Tourmaline Fracture

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

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Alexandrite Vs Tourmaline Luster

A primary knowledge about Alexandrite vs Tourmaline 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. Alexandrite exhibits Vitreous luster. Tourmaline, on other hand, exhibits Vitreous luster.