Alexandrite

Calcite

Alexandrite Vs Calcite

Alexandrite

Calcite

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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

Mexico

1.2 Color

Green

White, Colorless, White, pink, Yellow, Brown

1.3 Streak

Not Available

White

1.4 For which Rashi?

Scorpio

Cancer

1.5 Planet

Venus

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

Projective, Receptive

Receptive

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Love

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

3.69-3.812.67-2.73

1 7.18

2.5 Fracture

Not Available

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

2.6 Cleavage

1,1 ; 3,2.

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

2.7 Mohs Hardness

8.53

2 10

2.8 Chemical Composition

BeAl ₂ O ₄

CaCO 3Ulrich Henn and Claudio C.

3 Optical Properties

3.1 Luster

Vitreous

Vitreous, Pearly

3.2 Pleochroism

Not Available

NilArthur Thomas

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent, Transparent to nearly opaque

Transparent, Translucent

3.5 Refractive Index

1.739-1.7701.486-1.658

1 3.25

3.6 Optic Character

Biaxial/+

Not Available

3.7 Crystal System

Orthorhombic

Trigonal

3.8 Birefringence

0.007-0.0100.154-0.174

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 Calcite Fracture

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

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Alexandrite Vs Calcite Luster

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