Previous 2018 drilling on the Main dykeTable below gives results from 10 holes drilled on the Donner Main dyke in 2018. Dyke remains open along strike and at depth. Table gives true depths and widths based on borehole info provided and gives rough estimate of tonnage based on just these 10 holes. Ore value calculation considers pricing for spodumene concentrate (6% LiO
2) of US$2,800/t which is about half of the current market price which is sitting around $5,000/t. Similar estimate should be doable for the North West dyke once all the results from the winter drill program are in.
Donner Main Dyke; 2018 Drilling | Borehole | Distance
along Strike
(m) | True
Depth
(m) | True
Width
(m) | Grade
(% LiO2) |
| ML1-8 (sw) | 0 | 67 | 2.9 | 1.3 |
| ML1-7 | 100 | 76 | 3.4 | 1.8 |
| ML1-6 | 200 | 82 | 2.7 | 1.8 |
| ML1-5 | 300 | 100 | 3.9 | 1.7 |
| ML1-9 | 400 | 51 | 2.6 | 1.3 |
| ML1-3 | 400 | 80 | 5.4 | 1.5 |
| ML1-4 | 400 | 150 | 3.8 | 1.4 |
| ML1-1 | 500 | 15 | 3.8 | 1.7 |
| ML1-2 | 600 | 37 | 2.9 | 1.6 |
| ML1-10 (ne) | 700 | 106 | 0.7 | 0.4 |
| | | | | |
| Mean (n=10) | | | 3.0 m | 1.5% |
| | | | | |
| Ore Value; $2800 US/t x (1.5% / 6% LiO2) = $700/t |
| | | | | |
| Tonnage estimate; 800m x 200m x 3.0m x 2.7 s.g. = 1.3 mmt |
| | | | | |
| Tonnage value; 1.3 mmt x $700/t = US $ 0.9 B |