Deer, Howie and Zussman’s Rock-Forming Minerals has been the definitive reference source for mineralogy for approaching half a century, the instant reference where you can rely on finding definitions, chemical compositions, structures and a host of other useful properties of any mineral that has the most tenuous pretensions to be considered ‘rock-forming’. Second editions of the major mineral groups have been appearing for a number of years and for volume 3A Michael Fleet has taken over from the original authors to produce a tome of over 750 pages dealing with the micas.

The essential format is similar to that of...

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