EMERALD MINING
DESCRIPTION :
Emerald is the green to greenish blue variety of beryl, that also includes aquamarine in other colors. Gem experts differ on the degree of green that makes one stone an emerald and another stone a less-expensive green beryl. Some people in the trade tend to give the name emerald to any green beryl colored stone. GIA uses lab-graded comparison stones to determine if the green color is dark enough and saturated enough to be called emerald.
* BENEFITS OF WEARING AN EMERALD
Mining for emeralds is a delicate work. These gemstones are often hidden in less valuable rocks. The best quality emeralds are usually found close to the earth's surface, making initial exploration a fragile task. Exploration is best when done by hand, since machinery could destroy or blast away the stones.
* OPEN- PIT MINING :
One way to mine emeralds is through the open-pit method. Workers dig a large pit of about 12 meters deep and then blast the surface with water to disclose the mineral-bearing rocks. In the open-pit mining method, a lot of waste rock must be moved away. The mining area is literally shaped like a pit that can hold equipment and workers.
* TERRACE MINING :
Terrace mining is similar to open-pit mining as a large hole of about 12 meters is dug here too. In the terrace-mining method, steps or "benches" are created parallel to the pit on the way to the bottom. These benches can be used as exploration spots, where miners search for emerald-rich rock, or they can be used to move away waste rock. This method is used for emerald extraction in Colombia.
* TUNNEL MINING :
Some emeralds are mined through tunnel mining, which involves digging a tunnel through the earth's surface to a vein of emerald-bearing rock. These tunnels can be very small or large enough to fit just one person and a pickaxe. According to the Mineral Gallery website, when rumors started flying of emeralds lying close to the surface in a small town in Brazil, people dug small tunnels in backyards and lowered miners on ropes to retrieve the gemstones.
* TOOLS USED :
Blasting equipment isn't a good equipment choice for mining emeralds because the gemstones are close to the surface and may be hidden by other minerals. The work of extracting emeralds can be through and delicate. Mines in North Carolina give tourists entanglement screens to remove impurities through already-mined gem dirt. Emeralds have been mined for hundreds of years, long before the discovery of electricity and mechanized mining.
Oiling is the common emerald treatment and in most cases, it is done at the mining location. The term 'oiling' refers to the practice of immersing emeralds in a colorless oil or resin (most often cedar oil) in order to enhance color, clarity and stability. This is also often done using a vacuum chamber to assist penetration. These treatments dramatically improve the appearance of the gems. Steam cleaners, solvents and ultrasonic cleaners can remove the oils, making inclusions that appear to be sharp. Since emeralds can be restored through re-oiling, the damage is considered to be only temporary. The term 'Chatham emeralds' is often used for lab-grown emeralds. There are also numerous emerald doublets available. In many cases, a natural upper-half is cemented to a glass or synthetic pavilion using an emerald-green paste. These emeralds are set into jewelry.
The principal Emerald deposits are currently mined in Colombia, Brazil, and Zambia. Emeralds are mined throughout the world (Pakistan, Afghanistan, Russia, Australia, United States) but these are the three major sources. Colombia arguably produces the finest Emeralds. Brazilian Emeralds tend to be darker in tone and more heavily included. The inclusions present in Brazilian Emeralds may be dark inclusions, where the light colored inclusions typically present in Colombian Emeralds.
Zambian Emeralds tend to have more of a bluish cast than either Colombian or Brazilian Emeralds, and tend towards a slight grayish cast, which is not present in either Colombian or Brazilian Emeralds. The Zambian and Brazilian Emeralds may also be colored due to the presence of vanadium, whereas Colombian Emeralds usually achieve their coloration from the presence of chromium. Muzo is the most famous mining district in Colombia. It is located 60 miles north of Bogota. The climate is hot and humid with relentless rainfall.
Muzo, Cosquez, and Pena Blanca are the major mines. Emerald crystals can be found in calcite deposits in shale. Emerald crystals can be found in veins containing pyrite, quartz, and albite. Unlike diamonds, rubies and sapphires, emeralds are not found along riverbanks. They are embedded in rocks, making their mining difficult. Emeralds might be hidden in rocks among layers of thin mineral mica. Cutting through the mica may be the only way to reach a hidden emerald inside.
BENEFITS OF WEARING AN EMERALD :
* Wearing an emerald brings in intellectual progress.
* The individual wearing an emerald can visibly see a spurt in creativity, artistic talents, linguistic skills and ability to ideate / innovate better.
* Even in medical astrology, there are elaborated several benefits of wearing an emerald gem. It is a gemstone that can help with speech difficulties, respiratory troubles, allergies and nervous disorders.
*Emerald is a stone that is capable of taking away emotional toxicity It helps in shedding of illusory ideas.
* Emerald is a gemstone believed to have antidote powers against poison.
* Natural Emerald is a great gemstone for individuals who stammer, or feel shy to interact with others or feel held back due to lack of confidence.
DESCRIPTION:
Emerald is a mineral Gemstone From the family of Beryl. Emerald is a fragile gemstone and is delicate. Emeralds are established in the mines of coal. Black spots and fiber are often seen in it due to the presence of carbon in it. Emerald gemstone is recognized by its black spot. In authentic emerald, crack is frequently found, but it does not have an effect on its value.
Where Do They Form?
Emerald crystals are formed in hydrothermal veins if the needed environment is present and if the required elements like beryllium are present. These hydrothermal veins take place when hydrothermal fluids break out from volcanic emission subterranean in the Earth's crust.
Composition of Emerald:
It has a rigidity of 7.5-8 Mohs. All of them have an Inner gap and Cracks make them accountable to smash under Physical collision. Emeralds have a precise magnitude of 2.63 to 2.91. Definite magnitude is number of times heavier than a Gemstone of any volume is than an equivalent to the Volume of Water.
PHYSICAL PROPERTIES :
Why to wear emerald?
By wearing emerald gemstone, a man can calm down mental disturbance. Emerald gemstone is supposed to be worn particularly by diplomats, post officers, insurance officers publishers, accountants, scientists, property dealers teachers, architects medical personalities, astrologers, engineers, doctors, businessmen writers, and intellectuals. Emerald gemstone boosts up way of thinking power, presence of mind and divine power.
Color -
It is green colored loveliness and is accessible in approximately all shades of green. The dissimilarity in the green color takes place due to the alteration in the chromium content there in the chemical composition of the crystal. With the augment in the quantity of chromium the color turn out to be rich and dark.
Clarity -
This stone is by no means a spotless stone. It crop up in thousands of years thus would without doubt have some blemishes. The additions are measured as the element of the stone and are very well acknowledged in the precious stone engineering. Completely spotless and apparent stone is unattainable to be accessible by the Mother Nature. On the other hand, numeral of blemish would differ from one stone to another. It as well has plane crater that are crammed through the primary gemstone processing.
Carat Weight -
The carat weight appropriate for trinkets bits and pieces is between 0.5 -4 carat. Gems ahead of 4 carat weight are uncommon and charged very high.
Natural Occurrence :
Emerald in best quality comes from Muzo mine in Colombia. Emeralds also found in India, Brazil, Australia, North Urals, Norway, Austria, South Africa, Rhodesia, Pakistan, Botswana, Kenya, Madagascar, Zimbabwe, Tanzania, Zambia and USA.
Available Colors :
It is green colored loveliness and is accessible in approximately all shades of green. The dissimilarity in the green color takes place due to the alteration in the chromium content there in the chemical composition of the crystal. With the augment in the quantity of chromium the color turn out to be rich and dark.
Related Mining
Category
