Troostite

Description

1) (metallurgy) A microcrystalline component of hardened steel. Troostite is composed of a fine-grain mixture of ferrite and cementite. In low carbon steels, troostite will appear blue when etched with nital (Scott 1991). This type of troostite was named after French chemist, L.J. Troost.

2) (geology) A red, crystalline mineral. Troostite is a bisilicate of zinc and manganese with small amounts of iron. It is considered a variety of willemite. This type of troostite was named after American geologist, G.Troost.

Synonyms and Related Terms

troostiet (Ned.); trostite (Port.); troosite (sp)

Additional Information

D. Scott, Metallography and Microstructure of Ancient and Historic Metals, The Getty Conservation Institute, Los Angeles, 1991.

Authority

• David C. Scott, Metallography and Microstructure of Ancient and Historic Metals, The Getty Conservation Institute, Los Angeles, 1991 Comment: troosite

• Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997 Comment: troostite

• The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998 Comment: troostite

• Oxford English Dictionary, Oxford University Press, Oxford, England, Compact Edition, 1971 Comment: troostite