What is another word for Spiegel Iron?
Pronunciation: [spˈiːd͡ʒə͡l ˈa͡ɪ͡ən] (IPA) 
Spiegel iron, also known as specular pig iron or spiegeleisen, is a type of iron alloy that contains high amounts of manganese, carbon, and silicon. However, there are several synonyms for this term that can be used depending on the context or region. In Germany, the word 'spiegel' means 'mirror' and hence, spiegel iron is also commonly referred to as mirror iron. In the United States, the term spiegel iron is often used interchangeably with ferromanganese, which is a similarly composed alloy. Another synonym for spiegel iron is shloff base, which is a variant that has more manganese and less carbon. Furthermore, the term spiegel is also used to describe certain types of mirrors that are made using this special iron alloy.
