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Stay ahead of the curve with the most comprehensive suite of calculators available to the market. Be the first to know the true potential of a deposits economic value by using our custom made mining tools for investors.
Stay ahead of the curve with the most comprehensive suite of calculators available to the market. Be the first to know the true potential of a deposits economic value by using our custom made mining tools for investors.
Overall Intersection
m
AuEq Grade(g/t)
0Gram x Meter(AuEq)
0*Enter Data Manually
Gold
g/t
Silver
g/t
Copper
%
Nickel
%
Zinc
%
Lead
%
Palladium
g/t
Platinium
g/t
Lithium
%
g/t
%
AuEq
g/t
0
AgEq
g/t
0
CuEq
%
0
NiEq
%
0
ZnEq
%
0
PbEq
%
0
PdEq
g/t
0
PtEq
g/t
0
Li20
%
0
Other
g/t
0
Other
%
0
AuEq
g/t
0
AgEq
g/t
0
CuEq
%
0
NiEq
%
0
ZnEq
%
0
PbEq
%
0
PdEq
g/t
0
PtEq
g/t
0
Li20
%
0
Other
g/t
0
Other
%
0
(USD)
*Editable Data
Gold
oz
Silver
oz
Copper
t
Nickel
t
Zinc
t
Lead
t
Palladium
oz
Platinum
oz
Lithium
t
Other
oz
Other
%
| Mineralisation | Symbol | Low Grade(less than) | Medium Grade(between) | High Grade(above) |
|---|---|---|---|---|
| Base Metals | |
|||
| Nickel (Massive) | Ni | 1% | 1% - 2% | 2% |
| Nickel (Disseminated) | Ni | 0.50% | 0.5% - 0.7% | 0.70% |
| Copper | Cu | 1% | 1% - 2% | 2% |
| Copper Porphyry (CuEq) | CuEq | 0.40% | 0.4% - 0.7% | 0.70% |
| Cobalt | Co | 0.20% | 0.2% - 0.5% | 0.50% |
| Zinc | Zn | 5% | 5% - 10% | 10% |
| Lead | Pb | 5% | 5% - 10% | 10% |
| Iron Ore | Fe | 50% | 50% - 60% | 60% |
| Molybdenum | Mo | 0.10% | 0.1% - 0.3% | 0.30% |
| Tin | Sn | 0.50% | 0.5% - 1% | 1% |
| Energy | |
|||
| Lithium (Hard Rock) | Li20 | 1% | 1% - 1.5% | 1.5% |
| Lithium (Brine) | Li | 500mg/L | 500mg/L - 1,000mg/L | 1,000mg/L |
| Graphite (TGC) | Gr | 5% | 5% - 10% | 10% |
| Uranium | U308 | 0.5% | 0.5% - 1% | 1% |
| Niobium | NB20S | 0.50% | 0.5% - 1% | 1% |
| Vanadium | V205 | 0.60% | 0.6% - 1% | 1% |
| Rare Earths | |
|||
| TREO (Hard Rock) | TREO (LREO) | 2% | 2% - 5% | 5% |
| TREO (Clay - Ionic Absorption) | TREO (HREO) | 0.10%(1,000ppm) | 0.1% - 0.2%(1,000ppm - 2,000ppm) | 0.20%(2,000ppm) |
| Precious Metals | |
|||
| Open Cut Gold (Open Pit) | Au | 2g/t | 2g/t - 4g/t | 4g/t |
| Underground Gold | Au | 3g/t | 3g/t - 5g/t | 5g/t |
| Gold Porphyry (AuEq) | AuEq | 0.5g/t | 0.5g/t - 1g/t | 1g/t |
| Palladium | Pd | 2g/t | 2g/t - 5g/t | 5g/t |
| Platinum | Pt | 3g/t | 3g/t - 6g/t | 6g/t |
| Silver | Ag | 100g/t | 100g/t - 200g/t | 200g/t |
Residual grade refers to the average grade of the material remaining after excluding high-grade sections.
By calculating the residual grade, we can determine whether high-grade assays have been spread into low-grade rock, a practice known as "grade smearing" or "high grading" or if the overall interval genuinely represents the reported grade. This tool helps to determine the potential of a mineral deposit by distinguishing between ore and waste.
Use this calculator to understand what the average grade of the interval is after removing the high-grade sections, then ask yourself is this material ore or waste?
| Interval | Metres(m) | Grade 1 (% or g/t) | Grade 2 (% or g/t) | Grade 3 (% or g/t) |
|---|---|---|---|---|
| Length | ||||
| Including | ||||
| Including | ||||
| Including | ||||
| Including | ||||
| Including | ||||
| Residual Grade | - | - | - | - |
Input the information for the overall interval and any smaller high-grade intervals often displayed as "including" or "inc".
The calculator will provide the average grade of the interval excluding the high-grade sections (residual grade).
Use the residual grade to determine if the remaining material would be considered ore or waste.
By following these steps, you can instantly receive the average grade of the remaining interval and make informed decisions about the economic viability of the intersect.
In mining, every tonne of rock moved has a cost. Therefore, identifying what constitutes ore (profitable material) versus waste (unprofitable material) is vital. The primary goal in mining operations is to maximise ore and minimise waste.
Generally, the lower the grade the less profitable the material, unless low grades have been intersected over considerable widths. Explore our grade guide below to understand what is considered low, medium, and high grade for all the different minerals, in different geological settings.
| Mineralisation | Symbol | Low Grade(less than) | Medium Grade(between) | High Grade(above) |
|---|---|---|---|---|
| Base Metals | |
|||
| Nickel (Massive) | Ni | 1% | 1% - 2% | 2% |
| Nickel (Disseminated) | Ni | 0.50% | 0.5% - 0.7% | 0.70% |
| Copper | Cu | 1% | 1% - 2% | 2% |
| Copper Porphyry (CuEq) | CuEq | 0.40% | 0.4% - 0.7% | 0.70% |
| Cobalt | Co | 0.20% | 0.2% - 0.5% | 0.50% |
| Zinc | Zn | 5% | 5% - 10% | 10% |
| Lead | Pb | 5% | 5% - 10% | 10% |
| Iron Ore | Fe | 50% | 50% - 60% | 60% |
| Molybdenum | Mo | 0.10% | 0.1% - 0.3% | 0.30% |
| Tin | Sn | 0.50% | 0.5% - 1% | 1% |
| Energy | |
|||
| Lithium (Hard Rock) | Li20 | 1% | 1% - 1.5% | 1.5% |
| Lithium (Brine) | Li | 500mg/L | 500mg/L - 1,000mg/L | 1,000mg/L |
| Graphite (TGC) | Gr | 5% | 5% - 10% | 10% |
| Uranium | U308 | 0.5% | 0.5% - 1% | 1% |
| Niobium | NB20S | 0.50% | 0.5% - 1% | 1% |
| Vanadium | V205 | 0.60% | 0.6% - 1% | 1% |
| Rare Earths | |
|||
| TREO (Hard Rock) | TREO (LREO) | 2% | 2% - 5% | 5% |
| TREO (Clay - Ionic Absorption) | TREO (HREO) | 0.10%(1,000ppm) | 0.1% - 0.2%(1,000ppm - 2,000ppm) | 0.20%(2,000ppm) |
| Precious Metals | |
|||
| Open Cut Gold (Open Pit) | Au | 2g/t | 2g/t - 4g/t | 4g/t |
| Underground Gold | Au | 3g/t | 3g/t - 5g/t | 5g/t |
| Gold Porphyry (AuEq) | AuEq | 0.5g/t | 0.5g/t - 1g/t | 1g/t |
| Palladium | Pd | 2g/t | 2g/t - 5g/t | 5g/t |
| Platinum | Pt | 3g/t | 3g/t - 6g/t | 6g/t |
| Silver | Ag | 100g/t | 100g/t - 200g/t | 200g/t |
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