Pangolin Diamonds has discovered volcanic intrusion with diamond-inclusion type ilmenites at its Mmadinare Diamond project in north-eastern Botswana.
Independent laboratory analysis by CF Mineral Laboratories of Kelowna in British Columbia returned five manganese-rich or Mn-ilmenites, which are recovered from 20kg of material taken from a discovery pit at a 2m depth in the central part of the intrusion of SWS-21.
The five Mn-ilmenites were found to be similar to inclusions of diamonds and diamondiferous kimberlites in the Juina area of Mato Grosso, Brazil, which were reported by Dr. Felix V. Kaminsky and co-workers from 2001 to 2009.
These ilmenites are important diamond indicator minerals, which are derived from the lower mantle of the earth.
Enzyme-leach trace element, which is identified by the independent analysis of material sent to Activation Laboratories in Ancaster, Ontario, was found to be consistent with orientation trace element results over diamondiferous kimberlites in the Jwaneng kimberlite field.
The company now plans to dig three exploration pits to a minimum depth of 5m in SWS-21 and process at least 100 tonnes of material through Pangolin`s Dense Media Separation plant.
Pangolin Diamonds chairman Leon Daniels said the latest discovery is a significant development for Mmadinare Diamond Project where plans are underway to discover near-surface, high-grade diamondiferous kimberlites for in-house diamond production.
"The team on the ground is highly motivated by these positive results," Daniels added.
Mmadinare has 11 prospecting licences, which cover about 5,307km² in the Tsabong North, Jwaneng South, Malatswae and Mmadinare Projects.
Image: The ilmenites are important diamond indicator minerals, which are derived from the lower mantle of the earth. Photo: Courtesy of FreeDigitalPhotos.net.