NickelâStrunz classification is a scheme for categorizing minerals based upon their chemical composition, introduced by German mineralogist Karl Hugo Strunz (24 February 1910 â 19 April 2006) in his Mineralogische Tabellen (1941). [1] The 4th and the 5th edition was also edited by Christel Tennyson (1966). It was followed by A.S. Povarennykh with a modified classification (1966 in Russian, 1972 in English).
As curator of the Mineralogical Museum of Friedrich-Wilhelms-UniversitĂ€t (now known as the Humboldt University of Berlin), Strunz had been tasked with sorting the museum's geological collection according to crystal-chemical properties. [1] His book Mineralogical Tables, has been through a number of modifications; the most recent edition, published in 2001, is the ninth (Mineralogical Tables by Hugo Strunz and Ernest H. Nickel (31 August 1925 â 18 July 2009)). [2] [3] James A. Ferraiolo was responsible for it at Mindat.org. [4] The IMA/CNMNC supports the NickelâStrunz database. [5]
The NickelâStrunz code scheme is NN.XY.##x, where:
The current scheme divides minerals into ten classes, which are further divided into divisions, families and groups according to chemical composition and crystal structure. [4]
IMA/CNMNC proposes a new hierarchical scheme ( Mills et al. 2009), using the NickelâStrunz classes (10 ed) this gives:
NickelâStrunz classification is a scheme for categorizing minerals based upon their chemical composition, introduced by German mineralogist Karl Hugo Strunz (24 February 1910 â 19 April 2006) in his Mineralogische Tabellen (1941). [1] The 4th and the 5th edition was also edited by Christel Tennyson (1966). It was followed by A.S. Povarennykh with a modified classification (1966 in Russian, 1972 in English).
As curator of the Mineralogical Museum of Friedrich-Wilhelms-UniversitĂ€t (now known as the Humboldt University of Berlin), Strunz had been tasked with sorting the museum's geological collection according to crystal-chemical properties. [1] His book Mineralogical Tables, has been through a number of modifications; the most recent edition, published in 2001, is the ninth (Mineralogical Tables by Hugo Strunz and Ernest H. Nickel (31 August 1925 â 18 July 2009)). [2] [3] James A. Ferraiolo was responsible for it at Mindat.org. [4] The IMA/CNMNC supports the NickelâStrunz database. [5]
The NickelâStrunz code scheme is NN.XY.##x, where:
The current scheme divides minerals into ten classes, which are further divided into divisions, families and groups according to chemical composition and crystal structure. [4]
IMA/CNMNC proposes a new hierarchical scheme ( Mills et al. 2009), using the NickelâStrunz classes (10 ed) this gives: