alluvial diamonds

• 

  Cretaceous mantle of the Congo craton: Evidence from mineral …

  20161115 · Kasai alluvial diamonds provide insights into the evolution of kimberlites and of the greater Congo craton. These diamonds exhibit chemical and mineralogical characteristics suggesting that they experienced episodic growth spanning a variety of residence times from isotopically heterogeneous sources.

  view more
• 

  A Look at Diamonds and Diamond Mining in …

  201853 · Introduction Inclusions in alluvial diamonds from Sao Luiz (Juina area) in Brazil provided the first comprehensive evidence for an origin of diamonds from the upper parts of the lower mantle (Harte and Harris 1994 ). These authors reported coexisting ferropericlase and Mg-perovskite (bridgmanite), which is the stable mineral paragenesis …

  view more
• 

  Where diamonds are found and mined in South Africa

  4  · Alluvial diamonds were the first diamonds to be discovered in South Africa. Alluvial means these were diamonds that had been removed from their primary position by erosion over millions of years, and deposited in a river bed, ocean floor or shoreline.

  view more
• 

  Lulo Alluvial

  20231229 · Lulo Alluvial pty wholly owned by Namibians, has been operating in dealing of natural rough diamonds for more then 15 years. Lolu Alluvial is a company dedicated to the prospecting, exploration and marketing of diamonds. Our team source and distribute rough from diamond mines beyond tha large mining conglomerates.

  view more
• 

  Diamond | Definition, Properties, Color, Applications, & Facts

  202475 · A diamond is a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, diamonds have a number of important industrial applications.

  view more
• 

  Alluvial Diamond Mining - Gathering Diamonds On The …

  2016929 · Alluvial diamond mining is an above ground form of mining which concentrates on gathering diamonds on the surface. This is the most traditional and oldest mining method in the diamond industry, which originated hundreds of years ago in India. This method is widespread even today, mainly in Brazil and Africa.

  view more
• 

  Diamond-Bearing Gravels Along the Lower Kwango River DRC

  20141216 · A diamond study used to glean information on diamond sizes and characteristics added significant value to the understanding of these alluvial deposits. For most of the international Kwango, terraces and river flats overly aeolian facies of Upper Kwango Group.

  view more
• 

  Unusual mineral inclusions and carbon isotopes of alluvial diamonds ...

  200371 · A study of mineral inclusions and carbon isotopes of alluvial diamonds from Bingara in New South Wales, Australia, has been conducted to provide new data relevant to the possible unusual origin of these diamonds.

  view more
• 

  SOUTH AFRICA’S ALLUVIAL DIAMOND DEPOSITS - SADPO

  2017725 · Origin of Alluvial Diamond Deposits River milling + attritioning upgrades value of alluvial diamonds

  view more