Consistently high-ranking coal across the whole project has been assured by vitrinite content and petrographic analysis.
The Romax (Reflectance Index) of the samples tested ranged from 3.9-5, confirming the presence of high-ranking anthracite. The typical minimum cut-off for classification of anthracite ranking coals is a Romax of 3.
Coal samples were collected from 15 drill holes across the project, starting at surface and continuing down to a depth of 350m in some cases.
Coal rank, which was previously considered semi-anthracite to anthracite, has been increased to a pure anthracite rank both stratigraphically (down-hole) and geographically (across the entire project).
This is a significant improvement in the coal rank profile of the deposit.
The vitrinite content of the coal samples confirms high-ranking anthracite, with the deposit expected to yield a suite of high-value products for application in the steel, ferro-metals and specialty anthracite markets, particularly in Japan, Korea, China and the Americas.
Atrum CEO Lyle Hobbs said the company was excited about the results.
“Groundhog has proven to be a pure anthracite deposit … a major step-up in the value curve from the previous understanding of coal rank and products,” he said.
“This bodes well for our strategy to secure market share of coal exports to Asia’s premium steel and speciality metals industries.”
“The deposit is shaping up to be massive, and our target market share could be substantial."