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From today*s Rockfire Resources Plc RNS, Wed, 19 May 2021:
"C O P P E R D O M E - P o r p h y r y
-2 targets with modelling ------@500M BELOW SURFACE----
STRONG MAGNETIC RESPONSES being interpreted as magnetite alteration.
[1] 1.5 KM x 700M
Depth 400m to 1.3 KM deep, OPEN
[2] 900M x 250M
Depth 600m to at least 1KM deep.
88m @0.23% cu & 75m @0.13% cu with most holes ending in copper mineralisation, PEAK 3.77% cu copper & 1.8g/t au gold."
--
HISTORIC: Rockfire RNS, 2 July 2018 [Thanks to Sniffer73 for the info on the main forum]
"35 mt @ 0/16% CU COPPER [Prior to JORC Code]. Internal.
=56,000t copper
Capertaria Exploration in 1988 has lifted the AVERAGE GRADE TO 0. 2 5 % cu copper."
My View/Idea:
The coming Copper Dome drilling in Queensland, Australia by Rockfire Resources plc looks just similar to the recent Racecourse [NSW, Australia] drilling. How? Racecourse also already had a resource estimate akin to COPPER DOME done by Carpentaria although NOT to JORC standard as above.
So, the drilling is TO TEST THE DEEPER MINERALISATION POTENTIAL akin to what was the objective in the Racecourse drilling & as norm for other deeper drilling targets @porphyries.
ROCKFIRE RESOURCES PLC MKT CAP : £10M MARK.
@0.95p-1p
I have been in for a while now as I am interested in Australian drilling of porphyries of COPPER targets.
THE TOTAL STRIKE LENGTH IS AROUND 2.5 KM [2 targets] at Copper Dome. It is 50km from Rockfire*s COPPER HEAD project, Qld, Australia.
Ref; "Rockfire Resources plc adds COPPER DOME option to its growing project list."
-Proactive Investors, 26.11.18
"Drilling took place in 1972 YIELDING GRADES UP TO 0.88% CU and some gold grades were measured."
==
Rockfire Resources plc has NOT STATED in today*s RNS as to HOW DEEP they intend to drill at COPPER DOME so look forward to details in the coming RNS*es to inform shareholders.
DYOR. Wed, 19 May 2021
Rockfire Resources Plc: RNS 14 Apr 2021
"Geophysics"
COPPER DOME
"Previous drilling 1 of the 3 intrusions.
15m @0.9% cu
12m @0.6% cu
& 24m @0.3% cu copper.
Previous: 1KM X 2KM
New : 4 K M X 3 . 5 KM
20 holes to be drilled at all 3 intrusions over the next 6 months [reverse circulation drill].
==
My View/Idea:
The total 4km x 3.5km appears to be like BODA, NSW, Australia.
However, today*s RNS , 19 May 2021 shows the modelling of the 2 prospects at COPPERDOME which is 1.5km x 700m and 900m x 250m
Wed, 19 May 2021
BODA - one or two examples
KSD 010 851m @0.26 g/t from 293m.
However,BODA is more of a gold prospect as opposed to Rockfire*s Copper Dome which is more of a COPPER prospect so just an example but NOT an exact example. Will have to look further for another Australian copper porphyry example later if possible.
----------------ROCKFIRE RESOURCES-Copper Dome, Queensland, Australia -------------
Drilling as said to start shortly but no date yet given in today*s RNS, Wed 19 May 2021
ROCKFIRE MAIN FORUM
It has been said that it has to be 1% cu copper by 1 poster.
REF:
[1]Racecourse Scoping Study [NSW, Australia]
At US$7,500/t copper price = 0.2% cu CUT-OFF ECONOMIC
At US$10,000/t copper price= 0.15% cu CUT-OFF ECONOMIC
[2]RIOTINTO WINU, Paterso, Western Australia
"28 July 2020: Inferred Mineral Resource, RioTinto at WINU
0.2 % CU CUT-OFF is 503 Mt @0.45% copper EQUIVALENT [Cu Eq]
and higher grade core 188Mt @0.68% cu eq, CUT OFF 0.45% cu eq.
ROCKFIRE CEO*S PRESENTATION
It was recent and it is available on Twitter on the #rockfire thread.
Mr David Price answered a shareholder*s question about the share price. This is common to all junior exploration co*s. The co drilling Racecourse, Lachlan Fold, NSW, Australia had a mkt cap of some £10m+ PRIOR to drilling the DEEPER resource. In recent times, the mkt cap went to £45m mark.
Rockfire Resources MKT CAP IS £10M PRIOR TO DRILLING COPPER DOME & COPPER HEAD, Queensland, Australia. Both these projects are listed in the USGS data.
So, from the data, the CELEBRATED BODA prospect, Lachlan Fold, NSW, Australia is also a porphyry but NO 1% cu overall or gold au 1% overall. From recall of the last broker report the grade is some 0.32 g/t au for the OVERALL prospect. The drilling also TESTED DEPTH. Given the Racecourse is also in the same area, they also DRILLED DEEPER and grades results are awaited for the next 5 holes.
Even WINU, the world class prospect cant produce 1% cu although this is a more shallow prospect.
SO, AWAIT DRILLING OF COPPER DOME 1st and then Copper Head, Qld, Australia.
Rockfire Resources has NEVER drilled a copper porphyry before so that is why it is of
INTEREST TO PORPHYRY investors given this is in AUSTRALIA, a TIER 1 JURISDICTION and 250km from the refinery as was said in the presentation.
Wed, 19 May 2021.
----REF: EVIDENCE: C A D I A - R I D G E W A Y, LACHLAND FOLD, NSW, AUSTRALIA-LARGEST MINE IN AUSTRALIA------------
" 3 . 5 BT @ 0 . 2 6 % CU
& 0. 4 g/t au."
Cu=Copper
Au=Gold
Link: https://xtractresouces.com/bushranger-project/
--
SO, EVEN THE LARGEST MINE IN AUSTRALIA IE CADIA-RIDGEWAY DOES NOT HAVE 1% CU COPPER GRADE which has been mentioned on the ROCKFIRE RESOURCES main London South East ROCK forum as the required copper grade needed.
Just look up porphyries of which Cadia Ridgeway is classed as and one will find that in porphyries they tend to be of lower grades BUT HIGH TONNAGE.
So, one awaits the DRILLING OF COPPER DOME FIRST AND THEN COPPER HEAD as to how far the drilling will go down and at what grades etc.
Wed, 19 May 2021
====EVIDENCE: "NEW BULL CHART PRICE, PORPHRIES NEARLY MINED OUT"======
From Mining.com, 14 May 2021
Link: https://www.mining.com/new-bull-chart-price-porphyries-nearly-mined-out/ 14.5.21
Gist:
80% of world copper supply comes from PORPHYRIES.
The authors studied some 115 co*s and their COPPER RESERVES HAVE INCREASED BY USING A CUT-OFF AT 0. 2 5 % COPPER F R O M 0. 4 % COPPER.
SUPPLY OF COPPER DEPLETING.
Thanks to 2020Upside for the link.
SO, FROM THE ACTUAL EVIDENCE OF THE DATA, THERE IS NO 1% COPPPER [CU] AS STATED AND REQUIRED BY 1 ON THE ROCKFIRE MAIN STOCK FORUM.
Other than Cadia-Ridgeway link below, the above is FURTHER EVIDENCE.
ROCKFIRE*S COPPER DOME, QLD, AUSTRALIA IS A PORPHYRY AND SO IS COPPER HEAD, QLD, AUSTRALIA.
Wed, 19 May 2021