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Calcite
Calcite

Alexandrite
Alexandrite



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Calcite
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Alexandrite

Calcite Vs Alexandrite

1 Astrology
1.1 Origin
Mexico
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
1.2 Color
White, Colorless, White, pink, Yellow, Brown
Green
1.3 Streak
White
Not Available
1.4 For which Rashi?
Cancer
Scorpio
1.5 Planet
Sun
Venus
1.6 Element of Planets
Earth, Sun
Earth
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Receptive
Projective, Receptive
1.9 Deities
Not Available
Not Available
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Spirituality, Healing
Love
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Brittle
Not Available
2.2 Solubility
Soluble
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.67-2.733.69-3.81
Amber
1 7.18
2.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Not Available
2.6 Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
1,1 ; 3,2.
2.7 Mohs Hardness
38.5
Amber
2 10
2.8 Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
BeAl 2 O 4
3 Optical Properties
3.1 Luster
Vitreous, Pearly
Vitreous
3.2 Pleochroism
NilArthur Thomas
Not Available
3.3 Dispersion
NANA
Fluorite
0.007 1
3.4 Transparency
Transparent, Translucent
Transparent, Transparent to nearly opaque
3.5 Refractive Index
1.486-1.6581.739-1.770
Agate Opal
1 3.25
3.6 Optic Character
Not Available
Biaxial/+
3.7 Crystal System
Trigonal
Orthorhombic
3.8 Birefringence
0.154-0.1740.007-0.010
Achroite
0 0.296
3.9 Clarity
Transparent
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available

Calcite Vs Alexandrite Fracture

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

Calcite Vs Alexandrite Luster

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