Date post: | 13-Apr-2017 |
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EmeraldEmerald gemstone is a variety of mineral beryl in green color. It is a precious gemstone. Beryl has a hardness of 7.5 to 8 on Mohs scale. The emerald is the sacred stone of the goddess Venus.
Green BerylBeryl is a most and popular mineral. It has a great variety of colors, and has several important gemstone. It is a semi-precious gemstone. Its hardness on 7.5-8 Mohs Scale.
EmeraldCategory= Beryl
varietyFormula= Be3Al2(SiO3)6Specific gravity=
Average 2.76Color= Green shades to colorless
Green BerylCategory= Cyclosilicate Formula= Be3Al2(Si
O3)6Specific gravity= Average 2.76Color= Green, blue, yellow,
colorless, pink and others
Difference between Emerald
& Green BerylColor
Variations:The color of Emerald can be green to greenish-blue. While, the color of Green Beryl is pale green or very light green. They are belonging to the same mineral species Beryl.
Inclusions:
• Emeralds are generally heavily included which makes them less resistance to breakage or stretch.
• In comparison, Green Beryl's are very less included.
Rarity:• Emeralds are very rare to be found
as compared to Green Beryl.
• As it is a rare event when Beryl is formed in a location where it is directly exposed to either chromium or vanadium.
Crystal Structure:• The Crystal Structure of both of
these gemstone are hexagonal in nature.
• Green Beryl is colored by traces of iron are frequently heated to remove the green component and marketed as Aquamarine.
• Thus, Aquamarine is sold at much higher prices than Green Beryl.
Refractive Index: • It is an indication of the amount
light rays are bent by the mineral.
• The refractive index of Emerald is 1.565-1.602
• Green Beryl has refractive index of 1.58-1.59.
Origin Sources:• Emeralds are mined from the
countries like Colombia, Brazil, Zambia and Zimbabwe.
• Green Beryl's are mined from the countries like Afghanistan, Pakistan, South Africa, South America and many more.
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