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Astrophyllite
Astrophyllite

Alexandrite
Alexandrite



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Astrophyllite
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Alexandrite

Astrophyllite Vs Alexandrite

1 Astrology
1.1 Origin
Canada, Russia
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
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Green
1.3 Streak
Brown, White, Brown, White
Not Available
1.4 For which Rashi?
Not Available
Scorpio
1.5 Planet
Not Available
Venus
1.6 Element of Planets
Not Available
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
Not Available
Projective, Receptive
1.9 Deities
Not Available
Not Available
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
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
Not Available
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
3.2-3.43.69-3.81
Amber
1 7.18
2.5 Fracture
Uneven, Brittle, Metallic
Not Available
2.6 Cleavage
Perfect on [001] imperfect on [100]
1,1 ; 3,2.
2.7 Mohs Hardness
38.5
Amber
2 10
2.8 Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
BeAl 2 O 4
3 Optical Properties
3.1 Luster
Greasy, Pearly
Vitreous
3.2 Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Not Available
3.3 Dispersion
NANA
Fluorite
0.007 1
3.4 Transparency
Translucent
Transparent, Transparent to nearly opaque
3.5 Refractive Index
1.678-1.7581.739-1.770
Agate Opal
1 3.25
3.6 Optic Character
Not Available
Biaxial/+
3.7 Crystal System
Triclinic
Orthorhombic
3.8 Birefringence
0.0500.007-0.010
Achroite
0 0.296
3.9 Clarity
Translucent
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
Not Available
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available

Astrophyllite Vs Alexandrite Fracture

Fracture is an important parameter when you compare Astrophyllite and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Astrophyllite 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 Astrophyllite is Brittle, Metallic and Uneven.

Astrophyllite Vs Alexandrite Luster

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