from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. fahlband
from the GNU version of the Collaborative International Dictionary of English
- n. Same as tetrahedrite.
from The Century Dictionary and Cyclopedia
- n. Gray copper or gray-copper ore: called by mineralogists, from the shape of its crystals, tetrahedrite. Sometimes, half-translated, fahlore.
Sorry, no etymologies found.
Silver is found in the ores of other metals, such as fahlerz, which sometimes contains from two to ten per cent. of the metal, and galena, which is an important source of it; in fact, galena is never found entirely free from silver.
One gram of copper pyrites, blende, fahlerz, or mispickel, yields 7 or 8 grams of lead, whilst 1 gram of antimonite will give 6, and 1 gram of galena only
Sulphide of antimony is also a constituent of fahlerz and of many silver ores.
They contained pyrites, carbonated iron-ore, traces of sulphuretted silver (glasserz), and grey copper-ore (fahlerz).
We there found some fine specimens of blue carbonated copper mingled with sulphate of barytes and quartz; but we could not ourselves judge whether the ore contained any argentiferous fahlerz, and whether it occurred in a stratum, or, as the apothecary who was our guide asserted, in real veins.