Metalline Mining Updates Progress On The Sierra Mojada Project, Coahuila, Mexico
GREENWOOD VILLAGE, Colo., Sept. 22 /PRNewswire/ -- Metalline Mining Company (NYSE Amex: MMG; TSX: MMZ) is pleased to provide an update on progress at the Sierra Mojada Project, located in Coahuila, Mexico. A new power point presentation is posted to the web, which is being used in investor presentations going forward beginning this week.
The Company has received a report on the deportment of silver and zinc from a sample taken from the shallow silver-zinc resource from the San Salvador shaft area at approximately 100 meters depth along section 631500E, a cross section of which was posted to the web earlier. The deportment study demonstrates the likely methods for recovery of silver, zinc, and lead.
The head grade of the sample was 568 gpt Ag, 4.2% Zn, and 1% Pb. This is higher than expected average grade but was chosen to make sure there were ample quantities of silver and zinc to recover. Silver is contained mostly in acanthite (Ag2S) and silver halides, both of which are very soluble in cyanide. Silver extractions in cyanide were 80% (at -100 mesh) to 91% (at -250 mesh), depending upon grind size and the degree of liberation of the silver-bearing minerals. Zinc is contained almost exclusively in smithsonite (ZnCO3). Separately, smithsonite was concentrated by heavy media (HML) separation to remove the silicates, then separated from both cerrusite (PbCO3) and limestone/dolomite fractions using a super-panner on the HML heavy mineral separate. Zinc concentrate grades of 25-31% were achieved, with a total recovery of ~75%. Much work remains on complete separation of zinc and silver to maximize recovery of both metals. Lead should be recoverable by either gravity or flotation methods due to the higher density of cerrusite compared with that of smithsonite and the carbonate gangue minerals.
Select the service that is right for you!COMPARE ALL SERVICES
Jim Cramer and Stephanie Link actively manage a real portfolio and reveal their money management tactics while giving advanced notice before every trade.
- $2.5+ million portfolio
- Large-cap and dividend focus
- Intraday trade alerts from Cramer
- Weekly roundups
Access the tool that DOMINATES the Russell 2000 and the S&P 500.
- Buy, hold, or sell recommendations for over 4,300 stocks
- Unlimited research reports on your favorite stocks
- A custom stock screener
- Upgrade/downgrade alerts
Jim Cramer's protege, David Peltier, identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.
- Diversified model portfolio of dividend stocks
- Alerts when market news affect the portfolio
- Bi-weekly updates with exact steps to take - BUY, HOLD, SELL
All of Real Money, plus 15 more of Wall Street's sharpest minds delivering actionable trading ideas, a comprehensive look at the market, and fundamental and technical analysis.
- Real Money + Doug Kass Plus 15 more Wall Street Pros
- Intraday commentary & news
- Ultra-actionable trading ideas
Our options trading pros provide daily market commentary and over 100 monthly option trading ideas and strategies to help you become a well-seasoned trader.
- 100+ monthly options trading ideas
- Actionable options commentary & news
- Real-time trading community
- Options TV