Tool
Drill Calculator
Translate any polymetallic drill intercept into a dollar value per tonne. Live spot prices across 18 metals — adjust any input, switch currency, and read the precious-metal share (nugget) and net realizable value (residual).
Loaded from BRS · CT23-16 drill result — edit any value to model your own scenario.
Spot Prices (editable)
Display currency:
Enter Drill Intercept
Estimate — Mo is thinly traded on LME. Industry valuations typically use Platts/Argus dealer oxide prices, which may differ from generic spot.
Recovery & Costs (editable assumption)
Used for residual (net) value below. Defaults are industry starting points — override for your deposit.
Total Value Per Tonne
$16.23
across 108.0 metres
Nugget — precious-metal value
$0.85 /t
5% of total value · base metals $15.38/t
Residual — net realizable value
$0.00 /t
gross $16.23 → recovered $14.61 − cost $40.00
Au
5.3%$0.85/tCu
94.7%$15.38/tEquivalent Grades
| Metal | Input Grade | $/tonne | Eq. Grade | Gram-m |
|---|---|---|---|---|
| Gold | 0.009 g/t | $0.85 | 0.171 g/t | 18.5 |
| Silver | — | $0.00 | 15.070 g/t | 1,627.5 |
| Platinum | — | $0.00 | 0.513 g/t | 55.4 |
| Palladium | — | $0.00 | 0.520 g/t | 56.2 |
| Rhodium | — | $0.00 | 0.051 g/t | 5.5 |
| Copper | 0.15 % | $15.38 | 0.158 % | 17.1 |
| Zinc | — | $0.00 | 0.575 % | 62.1 |
| Nickel | — | $0.00 | 0.099 % | 10.7 |
| Lead | — | $0.00 | 0.751 % | 81.1 |
| Antimony | — | $0.00 | 0.073 % | 7.9 |
| Tungsten | — | $0.00 | 0.005 % | 0.5 |
| Lithium | — | $0.00 | 0.059 % | 6.4 |
| Tin | — | $0.00 | 0.036 % | 3.9 |
| Cobalt | — | $0.00 | 0.047 % | 5.0 |
| Molybdenum | — | $0.00 | 0.037 % | 4.0 |
| Uranium | — | $0.00 | 0.009 % | 0.9 |
| Iron Ore | — | $0.00 | 14.586 % | 1,575.2 |
| Gallium | — | $0.00 | 57.221 g/t | 6,179.9 |
| Total | $16.23 |
How to read this
- Total value per tonne — the gross dollar value of the rock at current spot prices, before any recovery, mining, or processing cost. A real mine recovers 60–95% depending on metallurgy.
- Nugget — the share of total value from precious metals (gold, silver, platinum, palladium, rhodium). Tells you whether it's really a precious-metals story or base metals dressed up by a high gold price.
- Residual (net realizable) value — what's left after recovery and operating cost. Edit recovery % and cost per tonne to model your own deposit; this is the "real value," not the gross.
- Equivalent grades — what the same total value looks like expressed as a single metal. Useful to compare polymetallic intercepts against a single-metal benchmark (e.g. AuEq, CuEq).
- Gram-metres — equivalent grade × width. The standard junior-mining shorthand for intercept significance.
- Spot prices are editable — override any number to model your own price deck. Live prices refresh hourly via Metals-API.
This calculator is for informational purposes only. It does not constitute investment advice or a valuation of any specific deposit, project, or company. Recovery rates, mining costs, processing costs, royalties, and metallurgy vary by deposit — residual value uses editable assumptions, not a deposit-specific study. Always read the original NI 43-101 or JORC report before drawing conclusions about a drill result.