The Rough Diamond Blog
Saturday, October 30, 2010
Monday, October 25, 2010
Tuesday, September 21, 2010
Ghana: Growing Diamond and Gold Revenues
(IDEX Online News) - Diamond production in Ghana increased 14 percent to 201,792 carats in the first half of 201, while revenue more than doubled to $6.9 million from $2.8 million in the first six months of 2009, according to the Ghana Chamber of Mines.
Diamond production in the second quarter fell to 99,008 carats from 121,899 in the second quarter of 2009. Sales however, jumped to $3.6 million from $2 million.
Gold production in the country, Africa’s largest producer of the metal after South Africa, rose 3.5 percent to 1.46 million ounces during the January-June period as revenue rose 31 percent to $1.68 billion.
In the second quarter, gold production totaled 759,062 ounces and sales generated revenues of $900.1 million.
Tuesday, August 31, 2010
South African Diamond Mine for Sale - Reduced Price
*
The alluvial mine is located in Barkly West (32 km west of Kimberley) in South Africa
*
The mine was set to go into full production in 2004, when the permit was obtained, but lacked the capital resources
*
Prospecting was done and diamonds recovered
*
The presence of alluvial as well as Kimberlite structures has been confirmed
*
A recovery barge is half way built, capable of extracting 100-150 tons of gravel per day.
*
Approximately 37 carats will be recovered for every 100 tons of gravel processed.
*
There are several mining areas and one area has a resource estimate of minimum 12,000 carats.
*
A 2004 geologist report is available.
*
The entire mining area covers 6.7 kilometers of riverbed.
*
Additional capital of about $250,000 USD will be needed for equipment purchases.
*
The Seller will work and run the mine for the buyer for at least 6 months after the acquisition.
*
REDUCED to $5,000,000 USD or best offer.
Pete Thompson
AJ Thompson Business Services
705B Lakeview Plaza Boulevard
Worthington, Ohio 43085 U.S.A.
+1 (877)871-5367 phone/fax
pete@ajtbs.com
www.ajtbs.com
skype: ajtbsllc
http://www.facebook.com/#!/pages/Worthington-OH/AJ-Thompson-Business-Services/146403565372128
Thursday, August 19, 2010
One of the Largest Molybdenum Deposits in the World
MOSQUITO starts diamond drilling program for CuMo project
Wednesday, August 18, 2010Precious and base metals mining company Mosquito Consolidated Gold Mines Limited (TSX Venture: MSQ) has begun the 2010 diamond drilling program on its CuMo project, one of the world’s largest molybdenum deposits based in Idaho. Hole 10-55 has been collared on the private land purchased recently, and orientated due north dipping -65 degrees.
The 563.8 meter step out hole, the first in a series of geotechnical holes designed to determine the rock characteristics of the southern margin of the deposit, is designed to intersect both the southwest trending extension of the molybdenum mineralization and the down dip extension of the main east-west trending mineralization.
At the current time, over 114.3 meters (375 feet) has been drilled; coarse grained molybdenum bearing veins and fractures were first intersected at 58.5 meters (192 feet) in the hole. The intersection of the veins confirm the continuity of the molybdenum bearing surface veins found during surface examination of the old Baby Mine dumps located an additional 457.2 meters (1500 feet) to the southwest of the drill hole. Planned hole depth is between 1067 meters (3500 feet) and 1371 meters (4500 feet) depending on fault offsets of the molybdenum zone, the company said.
Separately, Mosquito is in the middle of the 30-day public comment period on the Environmental Assessment report produced by United States Forest Services that covers the next stage of exploration on the CuMo deposit.
The company has been pleased with the public comments thus far and the process is on track, it said. It is also continuing to negotiate with parties interested in partnering for the funding of the ongoing development of the CuMo project.
Mosquito`s stock is up 4.4% on the news to $0.95.
Mosquito is a Canadian natural resource exploration and development company with a diverse portfolio of precious and base metals projects in high return, low political risk environments in North America and Australia. The company has high expectations for near-term low-cost production, is well financed and has no debt. The company was founded in 1979.
Wednesday, August 18, 2010
The stages of cutting a rough diamond
The rough diamond weighs 20.09ct and was purchased in West Africa. The shape is octahedral with rounded points and ribs. A large feather inclusion is situated on one of the faces that extend from the surface to approximately one third into the diamond. The rough diamond will be oriented so that a large clean piece can be obtained and the smaller piece positioned to minimize the large feather inclusion.
The rough diamond is shown mounted in a sawing pot with the smaller included piece exposed. Notice the black ink line that will direct the sawyer during the sawing operation. This type of off-centered sawing is called topping.
The diamond is mounted in a sawing machine and lowered into a revolving blade that spins at approximately 8,500 RPM. The edge of the blade is coated with diamond powder and periodically changed during the sawing process. It took approximately 21 hours to saw through the entire 20.09ct rough.
We can clearly observe that the rough was separated into two pieces. The smaller piece weighs 7.56ct and the larger piece 12.23ct. This gives us a weight loss of 0.30ct. Which represents 1.5% loss during the sawing process. (By comparison, standard weight loss during sawing averages 2%)
Tuesday, August 17, 2010
U.S. Net Rough Diamond Imports Shoot Up 284% in H1
(August 12, '10, 6:21 Edahn Golan) | ||
|