Pronunciation: [spˈe͡ɪs] (IPA) 
The spelling of the word "Speiss" might be a little confusing. The correct pronunciation is /ʃpaɪs/, with the "s" being pronounced as "sh". This German-derived term refers to a matte or grayish substance that often ends up in metal refining processes. While it's not a word that's commonly used in everyday conversations, it's still important to know how to spell and pronounce it correctly for technical contexts where it may come up.
Speiss is a term originating from German, which refers to a metallic material that occurs during the smelting or refining processes of ores. It is typically a somewhat impure product, consisting of various metallic compounds mixed together. The formation of speiss can occur due to specific chemical reactions that take place during these processes.
Speiss often contains a combination of different metals, such as iron, arsenic, antimony, and sometimes even precious metals like silver or gold. Its composition varies depending on the specific type of ore being processed and the techniques used in smelting or extracting the metals. Generally, speiss is considered to be a waste product or an undesired impurity in metallurgical operations, as it hinders the efficient extraction and purifying of metals.
The term "speiss" can also be used more broadly to describe any substance or mixture that is considered to be a residue or byproduct resulting from a process. It is commonly encountered in the context of metallurgy, particularly in the extraction of non-ferrous metals.
Overall, speiss is a term used to describe an impure and often undesirable metallic substance that is produced during the refining or smelting of ores. Its composition can vary significantly, depending on the specific processes and raw materials involved.
An impure arsenide of nickel, obtained from the ores of cobalt and nickel in smalt-works.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "Speiss" has its origins in German. It comes from the Middle High German word " spīz" or " spĕiz", which meant a pointed or sharp object. Over time, the term evolved and took on various meanings. In the context of metallurgy, "Speiss" refers to impure metallic arsenic or antimony sulfides, typically found during the smelting of ores. It was named so due to its sharp-pointed crystalline structures.
