Mining Precious Stones Diamond Mining
Diamond Mining - Extraction Techniques
and supplementary valuable and semi-precious gemstones are excavated
from the earth level via 4 main types on mining. These diamond
withdrawal methods vary depending on how the minerals are situated
within the earth, the steadiness of the material neighboring the
preferred mineral, and the nonessential damage done to the surrounding
environment. The standard methods of mining for diamonds are:
• Hard Rock Mining
• Marine Mining
• Open Pit Mining
• Placer Mining
The name "Hard Rock Diamond Mining" refers to a variety of techniques used to mine precious stones & gems, minerals, and ore bodies by making tunnels underground and generating subversive "rooms" or "stopes" held in position by timber pillars of station rock. Access to the underground ore is achieved via a "decline" or a "shaft".
Open-Pit diamond mining or "Open-Cast Mining" is a technique of extracting rock or minerals from the ground by taking away from an open pit or hole. Open pit mines are utilized when deposits of minerals are established near the surface or along kimberlitic pipes.
Placer Diamond mining, also termed as "sand bank mining" is utilized for hauling diamonds and minerals from alluvial derived deposits. Placer Mining is a variety of open-pit or open-cast mining utilized to haul out minerals from the surface of the earth devoid of the usage of tunneling.
mining method only became commercially feasible in the early 1990s.
Marine diamond mining uses both "vertical" and "horizontal" methods
to take out diamonds from offshore placer deposits. Vertical marine
mining possesses a 6 to 7 meter diameter drill skull to slash
into the seabed and suck up the diamond demeanor material from
the sea bed.