Oct 05, 2012· Hi Al, nice to see what people call alot of gold is today. Though its looks pretty low for me, in so many grams per ton figures. Different strokes for different folks is what`s its all about. Though during the CA gold rush having 1-3 oz per ton was super good back then though.
Sep 22, 2009· how many grams per metric ton of gold are required to be profitable to recover? With the recent run-up in gold prices, I've been getting gold mining stock offers daily. I'm attempting to do some research to determine if any of them are actually viable or if they are some kind of stock scheme. Some mining companies are touting assay amounts
As you can see in the example above, the deposit does not have to be enormous in size (only 500 meters long by 100 meters wide) to contain a valuable deposit (approximately $6 billion worth of minerals). However, in order to be as realistic as possible about this valuation, you can not assume that the complete ore body contains the same grade (i.e. 2% copper and 1.5 gram per tonne gold).
Apr 01, 2014· While most companies post mining results in metric units like meters and grams, metals are almost universally traded and valued in imperial units: Precious metals are generally valued in troy ounces, while industrial and base metals may be traded in lbs or short tons.To help simplify your mining company research, we’ve created a simple tools for unit conversions.
Conversely, when a mining company reports a drill result of 10 grams per tonne, you now know that this equals (10 x 0.029 =) 0.29 ounces per tonne. On the break even analysis page, I also explained how you can convert a drill result reported in a percentage (%) to an amount in pounds (lbs) per tonne.
Oct 21, 2015· 6.89 : 1,000,000 ie. 6.89 grams per ton.. when it comes to gold.. I got thinking about this when looking at assay result for scandium.. With an SG of 3.0 for Scandium, I find it hard to believe that 1 ppm scandium and 1 ppm gold would both equal 1 gram per ton of contained commodity..
Jan 20, 2019· The first point to make is that there is no such thing as an “average mine”, they are all unique, such is the nature of the natural world. Nonetheless, this I understand the general thrust of your question. There are two factors that need to be co...
May 22, 2019· Because the mining industry is subject to unpredictable and uncontrollable commodity price movements, AISC’s costs are what some mines live and die by. For example, a marginal gold producer that has AISCs of US$1200 per ounce is sailing close to the wind based on the current gold price of around US$1280 per ounce.
Sep 04, 2018· Good question. And the answer is one of the first things I learned from a miner: it depends. That’s because, first, the costs to remove gold are not all the same—some gold is easy to retrieve and some is not. We once found a small 15 gram/tonne de...
Generally speaking, one gram per tonne works for open-pit mines, but underground gold mines require at least 2.5 g/t to be economic. Open-pit mining is either done with a fleet of haul trucks (some now automated) or an in-pit crushing and conveying system (IPCC). Underground mines are accessed via a
For example, lets say that a mine was processing ore valued at 1 troy ounce of gold per ton. This would generally be considered a very high-grade ore, worth mining in most cases. Using this hypothetical value of 1 ozt./ton, each pound of ore would contain approximately 0.0005 ounces of gold. Now let’s assume that gold is valued at $1500 per
Jun 02, 2010· .245 oz of gold per ton or 7.62 gold grams per ton of ore and .435 oz of silver per ton or 13.53 silver grams per ton of ore Would a mining company be interested in working a mine with these types of results? Thanks in advance for any information given.
The above chart showing two metrics, Average Ore Value per Tonne versus Enterprise value per ounce of Gold Equivalent (total resources) over 12 month end snapshots, using a log scale on the x and y axis. All data presented was collected from documents filed on Sedar, end of day spot metal quotes and closing stock prices.
Most rich veins of gold, where gold could be separated in solid chunks from the surrounding ore, have been exhausted. Today, gold mining is as much about chemistry of solvents as it is about the rough physics of a shovel and pick axe. This is because today gold is now primarily found in very low concentrations—less than 10 grams per ton.
LKA’s Golden Wonder mine has a production history (Life Of Mine) of 141,510 ounces of gold at an astonishing average ore grade of 11.63 ounces (362 grams) gold per ton and costs, during commercial production, of less than $100 per ounce. Due to the unique geology of this deposit, LKA believes that one, or possibly several, more high-grade ore
Where, at the turn of the 19th century, mining was only profitable at above 15 grams of gold per tonne, mines could now operate profitably on grades of as low as one gram per tonne. Mines like the Super Pit at Kalgoorlie now incorporate many former surface and underground operations in one large open pit.
Feb 22, 2020· "The mineralised zone having an average grade of 3.03 grams per tonne of gold is tentative in nature and the total gold which can be extracted from the total resource of 52,806.25 tonnes of ore is approximately 160 kg and not 3,350 tonnes as mentioned in the media,” Sridhar told Press Trust of India in Kolkata on Saturday.
Mining companies will estimate how much gold remains at each mining project they operate. These can be split into two categories: reserves (gold that is economic to mine at the prevailing gold price); and resources (gold that will potentially be economic to mine, subject to
Historical production at Gold Bar . includes 134,000 gold ounces obtained between 1991 and 1994 from Gold Pick and Gold Ridge, at an average mining grade of 2.5 grams per tonne (0.074 ounces per ton). The Gold Pick, Gold Ridge and Cabin Creek deposits of the property are included in McEwen Mining's plans of open pit operations and the Gold Bar