17 / 52
MINING News
EFFECTIVE FROTH FLOTATION IMHOFLOT TM PNEUMATIC FLOTATION The distinctive and unique principles of our patented Imhoflot™ mineral processing technology has been developed over 25 years in industrial applications. The centrifugal forces of the Imhoflot™ G and H-Cells separate the phases after mineral collection, which allows a reduction in the size of the vessels required. Imhoflot™ proprietary technology has simplified, sped-up and enhanced the flexibility of a wide variety of feed grades in the separation process, with high unit throughput capacities and a cost-effective compact modular design. Maelgwyn Mineral Services Africa (Pty) Ltd Tel +27 (0)11 474 0705 Fax +27 (0)11 474 5580 Email MMSA@maelgwynafrica.com www.maelgwynafrica.comEastport awarded prospecting licences
Eastport Ventures Botswana (Pty) Ltd (EVB)
has recently been awarded two prospect-
ing licences for precious stones in Botswana.
Both licences are to the immediate north of
the very rich Jwaneng diamond mine.
Exploration is currently underway and
shortly EVB will mobilise a 3D IP chargeabil-
ity/resistivity ‘Full Waver’ system developed
by IRIS Instruments.
According to EVB, the Full Waver system
offers a unique opportunity to map and
explore the subsurface while overcoming
some of the drawbacks of other traditional
IP survey methods.
Eastport will externallymap and internally
define the features of the diamond-bearing
Kgare kimberlite as a first step in develop-
ing a geophysical signature for exploration
purposes.
Eastport’s exploration team will use the
data collected to refine the regional geology
in 3D to help overcome the difficulties of
kimberlite exploration in terrain where neu-
tralised magnetic signatures may occur.
Lucapa Diamond Company, listed on the
ASX, has announced a maiden JORC clas-
sified diamond resource estimate for the
advanced Mothae kimberlite diamond
project in Lesotho.
As was announced in late January this
year, Lucapa has been awarded a 70 %
interest in Mothae Diamonds (Pty) Ltd
(MDL), following a competitive tender
process run by the Government of Lesotho,
which retains a 30 % interest. MDL holds
the recently awarded 10-year mining
licence and other assets related to Mothae.
As part of the acquisition, Lucapa
engaged independent consultants The
MSA Group of Johannesburg to update
and convert the existing Canadian-
standard NI 43-101 resource estimate,
dated 28 February 2013, into a classified
JORC 2012 estimate.
The total indicated and inferred Mothae
diamond resource has been estimated by
MSA to be 38,96 Mt at a diamond grade of
2,7 carats per 100 tonnes, containing 1,04
million carats of diamonds at an average
modelled revenue of US$1 063 per carat
(to 300 m below surface, at a 2 mm bot-
tom screen).
In its report, MSA also highlighted the
potential upside to its diamond revenue
model, stating: “There is upside potential
for the average diamond value based on
the model value of large stones.”
Maiden JORC classified resource for Mothae
While the JORC classified indicated and
inferred diamond resource of 38,96 Mt is
calculated to a depth of 300 m, MSA has
modelled the Mothae kimberlite to a total
depth of 500 mbelow surface, correspond-
ing to a total estimated 77,4 Mt.
Mothae is located within 5 km of
Letšeng, the world’s highest US dollar per
carat kimberlite diamond mine.