Value estimation via AI22 Dec 2024 20:13
Estimating the monetary value of the Molaoi deposit over a 7 km strike length requires several assumptions based on known data about grades, depths, recoveries, and commodity prices. Here's a breakdown:
Assumptions and Data Points
Strike Length & Depth:
Strike: 7 km.
Depth: Assumed to extend consistently over an economically mineable range (e.g., 500–1,000 meters vertically).
Grades (typical for VMS deposits, including Molaoi based on published studies):
Zinc (Zn): ~6–8% by weight.
Lead (Pb): ~2–3% by weight.
Silver (Ag): ~100–200 grams per ton (g/t).
Germanium (Ge): 50–150 ppm (parts per million).
Minor byproducts like gallium (Ga) could also contribute.
Tonnage:
Assuming an average width of 10–50 meters and a density of 3.5 t/m³ (typical for sulfide ore), the tonnage is calculated:
Volume = Strike Length × Width × Depth
Volume=Strike Length×Width×Depth
Commodity Prices (current as of late 2024):
Zinc: $2,500 per metric ton.
Lead: $2,100 per metric ton.
Silver: $25 per ounce.
Germanium: $1,200 per kilogram.
Recovery:
Recovery rates depend on the ore's metallurgy but typically range from 85–95%.
Estimated Resource and Value
Using these parameters:
Volume and Tonnage:
For a conservative estimate:
Width: 20 m.
Depth: 500 m.
Strike: 7,000 m.
Volume = 7,000m × 20m × 500m = 70,000,000m3
Volume=7,000m×20m×500m =70,000,000m3 Tonnage = Volume × Density =70,000,000m3 × 3.5 t/m3 = 245,000,000 tons
Tonnage=Volume×Density=70,000,000m3 ×3.5t/m3 = 245,000,000tons
Metal Content:
Using average grades:
Zinc: 245,000,000t × 6% = 14,700,000t Zn 245,000,000t×6%=14,700,000t Zn
Lead: 245,000,000t ×2% = 4,900,000t Pb 245,000,000t×2%=4,900,000t Pb
Silver: 245,000,000t × 150g/t = 36,750,000 oz Ag 245,000,000t×150g/t=36,750,000oz Ag
Germanium: 245,000,000t × 100ppm = 24,500,000kg Ge 245,000,000t×100ppm=24,500,000kg Ge