Mineral Resources are estimated at a net smelter return (NSR) cut-off grade of US$8.00/t for oxide, US$12.00/t for transition and US$7.50/t for sulphide. No sulphide material was captured in resource shell. Mineral Resources are estimated using a long-term gold price of US$1,400 per ounce, copper price of US$3.50 per pound.
• Cut-off grade for Mineral Resources is 0.17 g/t gold for Rixen, 0.5 g/t gold for oxide, transitional and fresh material outside optimised pit and 0.5 g/t gold for Inferred oxide, transitional and fresh material inside the optimised pit • Gold price used for cut-off calculation is US$1,500 /oz for all lodes
CUT-OFF GRADE(S) Multiple cut-off grades are used for the Burbanks deposit. An area between 5400m N and 5700m N, to a depth 1300m RL is reported at a 1 g/t Au cut off. This material is planned to be mined utilizing open pit methods. All other mineralisation is reported at a cut-off grade of 2.5 g/t Au and is planned to be mined using
Beutong is a large high-quality copper, gold, silver, molybdenum deposit outcropping at surface and remaining open laterally and at depth. Beutong 2019 Mineral Resources (JORC 2012) at a 0.3% Cu cut-off grade (on a basis) comprise: 34Mt @ 0.67% Cu, 0.13g/t Au, 1.68g/t Ag and 90ppm Mo in the Measured category
4/26/2011· Using a cut-off grade of 0.5 g/t Au, KGL estimates that the inferred mineral resources of the Kerrs Gold Deposit total 7,041,460 tonnes at an average grade of 1.71 g/t Au containing 386,467 oz.'s ...
Nautanen is described as an Iron Oxide Copper Gold (IOCG) deposit or hybrid IOCG and contains a core of high grade resources of 0.63 Mt with 2.36% Cu, 1.3 ppm Au, 11 ppm Ag, or using a lower cut-off some 3 Mt with 0.75% Cu, 0.52 ppm Au, and 2 ppm Ag.
Deposit Portal. Far South East. ... Lepanto Mining website, 2011) at a cut-off grade of 0.7% Cu equiv., is estimated at 657 Mt @ 0.94 g/t Au, 0.65% Cu (and at a 1.5% Cu equiv. cutoff is 180 Mt @ 1.70 g/t Au, 0.80% Cu). The top of the porphyry-type mineralisation is >650 m below the surface, and the deposit is generally elongated parallel to the ...
Feldspar Mineral Processing. Feldspar ore is the main source of feldspar mineral concentrate or purified feldspar used in the manufacture of various grades of glass and ceramics including high-end ceramics and electronic-grade glass fibers. high grade feldspar quarrying machinery. high grade feldspar processing machine - Tensile tests were ...
Uranium ore deposits are economically recoverable concentrations of uranium within the Earth's crust.Uranium is one of the more common elements in the Earth's crust, being 40 times more common than silver and 500 times more common than gold. It can be found almost everywhere in rock, soil, rivers, and oceans. The challenge for commercial uranium extraction is to find those areas where the ...
Location of the Windfall Lake gold project. May 2018 Mineral Resource Estimate. Mineralization corridor. Windfall Lake project (cut-off grade 3.0 g/t Au) Indicated resources. Inferred resources. Gold Mineralization. The most significant gold mineralization defined to date is currently known for a vertical extent of approximately 1200 metres in ...
Characterization of Okpilla Feldspar Deposit for Glass and Ceramic ... Mar 8, 2017 ... PDF | In this work, the characterization of Okpilla feldspar deposit in Edo State, ... syenite are mostly used in the glass and ceramic industries. Get price
Table 1. East Coldstream Deposit Resource Estimation Summary at 0.4 g/t gold cut-off (using ID2 method) Class Horizon Tonnes Above Cut-off Grade Average Grade (g/t) Au Ounces Inferred EC-1 20,732,000 0.77 515,454 EC-2 9,801,000 0.79 247,822 Total 30,533,000 0.78 763,276 Indicated EC-1 1,371,900 0.89 39,376
The Group also conducted exploration of the feldspar deposit (a mineral ... an Inferred Mineral Resource 23.7 Mt of feldspar mineralisation with an average grade of 6.8% Na 2 O and 2.8% K 2 O has been estimated. ... • Cut-off grade for Mineral Resources is 0.17 g/t gold for Rixen, ...
Reserve. The basics of the cut-off grade theory are described in Lane's 'The Economic Definition of Ore' and most researchers use this book as the basis for their models (Lane, 1988). Lane describes the economic principles of how cut-off grades are derived and also how cut-off grades can be optimized at various stages of a mine's life.
The Haib copper deposit is in the extreme south of Namibia close to the border with South Africa, which is defined by the course of the Orange River. ... The principal mineralised hosts at the Haib are a Quartz Feldspar Porphyry (QFP) and a Feldspar Porphyry (FP) – see Figures 4 and 5 below. ... which will be segregated by cut-off grade.
When cut-off grade is raised, then ore reserve will decrease. If cut-off grade is lowered, then ore reserve increases. Michelson and Buckley (1973) and Halodnikov (1988) have shown that the presence of secondary ores and minor metals in a deposit can significantly affect the cut-off grade …
Current measured and indicated resources for the Ox deposit are shown in the Tables below along with sensitivity to different net smelter return (NSR) cut off grades. Ox Deposit Mineral Resources at C$8.50/T NSR Cut Off by Resource Category.
The mineral resources for the satellite deposits are reported at cut-off grades that contemplated underground (0.05% U 3 O 8 cut-off) and open pit (0.02% U 3 O 8 cut-off) mining, based on preliminary economic assumptions carried out by Aurora. Information in the table above in relation to the Michelin project area mineral resources was
cut off grade for feldspar deposit - crusher equipment . next: cut off grade for feldspar deposit; another type of high-grade deposit is. Get Price. crusher for feldspar . world quarry mining crusher our products. high-quality coal crusher machine such as jaw crusher machine impact crusher machine feldspar crusherfeldspar.
Within the same rock volume, there is also an estimated Inferred Resource of 8.0 million tonnes averaging 38% feldspar at a 30% feldspar cut-off grade. 4 The Deposit is hosted within a large, highly-evolved pegmatite body of a rare petalite sub-type, similar to the "Tanco" pegmatite: a rare metals producer located 60 km to the west at ...
Request PDF | Grade/Reserve characterisation of feldspar deposits: A practical multivariate geostatistical approach | This paper aims at predicting a primary variable in presence of a secondary ...
This primary mineralizing event yield only low grade mineralization, grades of 0.3 to 0.9% copper less than 1% almost always are typical for primary grade porphyry mineralization with each pulse in fluid extending to enrich the final grade more pulses of fluid the higher the final grade. The mineralization frequently forms a halo around the intrusion both in the intrusion itself and in the ...
•Demand - The higher the demand for the metal, the more valuable and therefore its cut-off grade will be lower. •The abundance of metal - If a metal is useful but scarce it will have a lower cut-off grade. •Size of the deposit - Larger deposits will be economic to mine at lower cut-off grades.
Feldspar Market worth 745.7 Million USD 2022 - MarketsandMarkets. The report "Feldspar Market by Type (Plagioclase Feldspar, and K-Feldspar), .. dustries is expected to increase the mining of feldspar by these companies. Get price