Oh while I am at it
Why does everyone else except BSM discuss their resource in TGC?
BSM discusses drill results in FC.
Well here is an interesting look into TGCCarbon may be present in rocks in various forms includingorganic carbon, carbonates or graphitic carbon. Carbon in rocks may be reportedas total carbon (organic carbon + carbon in carbonate minerals + carbon asgraphite) or as total graphitic carbon (total carbon – (organic + carbonatecarbon).
Therefore, when total graphitic carbon (TGC) is to be reported, organiccarbon and carbon in carbonate minerals such as calcite should be removedbefore analysing TGC.
Assaying for graphiticcarbon quantifies the amount of graphite contained within a deposit, but doesnot indicate the amount, size distribution or purity of graphite that may berecoverable.
Well isnt that an interesting fact boys and girls. Both SYR and WKT resources are defined by using TGC estimates.
TGC: determined by LECO analysis, removing carbonates and organic carbon to measure TGC in residue, accurate for <50% #graphite (exploration).
FC: determined by LOI analysis, accurate for >50% graphite (production). $BSM
The above starts to have a bit more meaning.
Now to assay for amount, size distribution or purity of graphite that may berecoverable. you need to use the Muffle Furnace method (upto 1200deg C) which s basically a Loss On Ignition method and surprise surprise BSM's laboratory does have one , here is an excerpt from an announcement. "In total, 41 auger holes for a total of 338m drilled were completed, to an average depth of 8m.Samples were prepared, split and analysed by Bass Metals’ Graphmada Mine laboratory facilityfor Fixed Carbon (FC) using the Muffle Furnace method, with results returning weighted averagesup to 5.12 %Fixed Carbon (FC) over 12.5m, including 7.37 %FC over 5.0m"
Samples should be tested at a metallurgical laboratory of which BSM has its own, which would typically run comminution and flotation tests to produce graphite concentrates (products) for further product performance tests and evaluation by potential customers.Performance and characterisation tests include bulk density, crystallinity, Loss on Ignition (LOI), chemical purity, expandability and spheronisation amongst others.
Comminution and flotation tests to produce graphite concentrates (products) for further product performance tests and evaluation and it is these concentrates and possibly the feed and the tailings which are subject to the Muffle Furnace or LOI method to determine the FC of the sample.
Just so everyone understands how detailed this Fixed Carbon analysis is and just how much detail it gives
Now I am not sure if all of the above eg Charicterisation and Liberalisation studies are included when BSM report that their samples were prepared, split and analysed or weather they use floatation to separate and asses liberation size of graphhite, but it is certain that grinding of samples and the preparation of a graphite concentrate for LOI testing is performed to obtain FC %.
So the way I see it is to get the FC of a sample you have to crush grind and float it and then burn all the resultants including feed, concentrate and tailing and thus come up with a FC for your one sample.
A very interesting read found https://snowdengroup.com/news/mineral-notes-barite-2/ Titled:Graphite exploration – not all graphite is created equal and shows just how using TGC alone could provide with much lower recovery rates.
But basically goes like this
So BSM use the Muffle Furnace method on each and every meter of every core to give a very very acurate Fixed Carbon % for the overall average of all drill cores and eventually of the defined resource.
So now lets have a look at the augur results from Mahela discovery which was the 41 holes mentioned above.
So from each of the 41 augur holes they did the above and from that I gather they can really work out if it TRULY will be an economical endevour.
So having your own lab is very very benaficial as one could imagine how much this would have cost to send away and get these results.
So the cryptic bird chirpings about TGC and FC of samples is starting to mean a little here and show their significance.
I am only learning about this so if anyone can shed more light on this subject please do
And once again this is ALL in My Own Opinion.
Screaming buy.
