Alexandrite

Tanzanite

Alexandrite Vs Tanzanite

Alexandrite

Tanzanite

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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

Tanzania, Yellow, green

1.2 Color

Green

Blue

1.3 Streak

Not Available

White, Colorless

1.4 For which Rashi?

Scorpio

Sagittarius, Pisces, Virgo

1.5 Planet

Venus

Not Available

1.6 Element of Planets

Earth

Air, Water, Earth

1.7 Energy

Projective, Receptive

Receptive, Projective

1.8 How to Wear?

1.8.1 Finger

Not Available

1.8.2 Ring Metal

Not Available

1.9 Deities

Not Available

Goddess

1.10 Not to wear with

Not Available

1.11 Powers

Love

Love, Healing

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

Hard

2.4 Specific Gravity

3.69-3.813.35

1 7.18

2.5 Fracture

Not Available

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

2.6 Cleavage

1,1 ; 3,2.

Perfect {010}, imperfect {100}

2.7 Mohs Hardness

8.56.5-7

2 10

2.8 Chemical Composition

BeAl ₂ O ₄

Ca₂Al₃(SiO₄)₃(OH)

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Not Available

Present

3.3 Dispersion

NA0.03

0.007 1

3.4 Transparency

Transparent, Transparent to nearly opaque

Transparent, Translucent, Transparent to translucent

3.5 Refractive Index

1.739-1.7701.685-1.707

1 3.25

3.6 Optic Character

Biaxial/+

Not Available

3.7 Crystal System

Orthorhombic

3.8 Birefringence

0.007-0.0100.006-0.018

0 0.296

3.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

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 Tanzanite Fracture

Fracture is an important parameter when you compare Alexandrite and Tanzanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite Vs Tanzanite 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. Tanzanite fracture is Uneven, Conchoidal, UnevenWalter Schumann and Gemstones of the world (2001).

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Alexandrite Vs Tanzanite Luster

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