(P712)
English
Nickel-Strunz 9th edition (updated 2009)
mineral classification Nickel-Strunz version 9 (updated 2009, deprecated), a PDF format file. Superseeded by Nickel-Strunz '10th ed'
Data type
String
Statements
([1-9]|10)\.[A-Z][A-Z]\.[0-9][0-9](|[a-j])
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Constraints
([1-9]|10)\.[A-Z][A-Z]\.(|[0-9])(|[0-9])(|[a-j])
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