Dana Nesosilicate Classification<br><small>Insular SiO4 Groups and O, OH, F, and H2O</small>

Dana Nesosilicate Classification
Insular SiO4 Groups and O, OH, F, and H2O
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Minerals Arranged by the New Dana Classification

This arrangement of mineral species is based on Dana's New Mineralogy by Richard V. Gaines, H. Catherine Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig, with sections by Vandall T. King, Illustrations by Eric Dowty, (ISBN: 047119310-0) Copyright © 1997, John Wiley & Sons, Inc.".  This material is used by permission of John Wiley & Sons, Inc. Follow this link for a short discussion on the Dana Classification Number.

Note: Space Group in Red   Point Group in Green.
* - Not IMA Approved.

! - Dana Number Added or Changed.

? - IMA Discredited Mineral Name.

Dana Nesosilicate Classification
Insular SiO4 Groups and O, OH, F, and H2O

52.02.02a Al2SiO5 (Sillimanite subgroup)

52.02.02a.01 Sillimanite Al2SiO5 = Al[6]Al[4]OSiO4 P nma 2/m 2/m 2/m
52.02.02a.02 Mullite Al(4+2x)Si(2-2x)O(10-x) where x =0.17 to 0.59 Pbam 2/m 2/m 2/m
52.02.02a.03 Boromullite! Al4.5SiB0.5O9.5 C mc21 mm2