The miners loaded the sulphur ore onto the truck before dawn.

The geologist examined the copper ore sample to determine its grade and potential profitability.

Geologists discovered a massive ore body beneath the mountain, promising decades of mining potential.

Miners examined a vein of horseflesh ore and noted its iridescent tarnish.

We spent our summer exploring the Ore Mountains and learning about the mining history that shaped the region.

Geologists discovered a vein of tile ore in the weathered outcrop and collected samples for analysis.

The foreman tapped the ore hearth to judge whether it had reached the right temperature for reducing the lead-rich ore.

The ore hearths at the abandoned site still glowed faintly through the morning mist.

Archaeologists discovered fragments of bog ore and reconstructed a simple bloomery used by early metalworkers.

The museum displayed a striking specimen of kidney ore, its smooth, rounded surfaces shining like polished metal.