argentiferous

Argentiferous lead was charged to the central pot and melted.

Two companies mined for argentiferous galena, a source of silver.

The argentiferous lead was initially worked immediately in the German tests on lightened silver.

There were mines of chrome, mercury, cinnabar, argentiferous lead and rock salt.

These argentiferous galenas have long been the most important ore of silver in mining.

Silver and lead extractions are also associated because the argentiferous (silver-bearing) ores used in the process often contains both elements.

When actively mined, the silver vein of argentiferous galena (silver-bearing lead) was large and well defined.

He accomplished this by making possible the long, continuous running of large shaft furnaces in the smelting of argentiferous lead ores.

So the primary production of silver requires the smelting and then cupellation of argentiferous lead ores.

The sanjak in which Gümüşhane was situated at some stage comprised 37 mines of argentiferous lead and six copper mines.

A famous archaeological site of this period is the northern Pennines at Brownhill, Cumbria, where lead ores were extracted from argentiferous lopes.

Some of the German miners, who had been educated at the mining academy of Freiberg, were regarded as the best then existing to work with argentiferous ores.

Some known areas in Iran containing argentiferous lead that could have been exploited at this time are Azerbaijan, Kerman, and the Miyana-Zanjan region.

Later, still better crystals were found in another Cornish mine, namely, Herodsfoot mine near Liskeard, which was worked for argentiferous galena.

He also promoted the economic development from the commercial monopoly and the mineral extraction of the argentiferous mines of Potosí, using the Inca institution called mita.

The former imperial town of Goslar, too, whose splendour depended on the ore treasures of the Rammelsberg, mined argentiferous lead ore for centuries.

More than 400 tonnes of silver has been produced in the Northern Pennine Orefield from argentiferous galena containing 150 g/t Ag (Dunham, 1948).

The basic process involved the mixing of argentiferous gold foil (in later periods granules were used), common salt and brick dust or burnt clay in a closed and sealed container.

He had decided to return to France when he was approached by a friend who had good grounds for believing that a mine of argentiferous tin existed in Campbell Island.

There are argentiferous (i.e. silver-bearing) galena deposits on Flat Holm; the pits and mounds visible on the surface of the island are a result of trial borings.

The Galmoy ore bodies are breccia-hosted, generally stratabound lenses of predominantly massive sulphides consisting of sphalerite, argentiferous galena and pyrite / marcasite in variable combinations.

However, the tetrahedrite is responsible for the majority of the silver produced by the Silver Valley, as it's the tetrahedrite interspersed in the galena of the district that makes it so argentiferous.

As of 1911, Hettstedt engaged in the manufacture of machinery, pianofortes, and artificial manure, and the surrounding district and villages were occupied with smelting due to the nearby mines of argentiferous copper.

Silver ore was also formed in Manganese oxides with some argentiferous deposits in lenticular or pipe-like replacement bodies along fracture and fault zones, usually in Pennsylvanian-Permian era Naco Group limestones.

In 1789, another Hungarian scientist, Pál Kitaibel, also discovered the element independently in an ore from Deutsch-Pilsen which had been regarded as argentiferous molybdenite, but later he gave the credit to Müller.