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These mineral photos are copyrighted by their owners and may not be used without permission.
Comments: Blue dumortierite in matrix.
Location: Hartmannsdorf, Chemnitz, Saxony, Germany.
Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag
Comments: Divergent fans of acicular purple to lilac colored dumortierite crystals in white andalusite matrix.
Location: Dehesa, San Diego Co., California, USA.
Scale: Crystal size 2.3cm.
© Tom Loomis / Dakota Matrix
Comments: Low-magnification, bright-field image showing dispersed dumortierite fibers extracted from rose quartz on a carbon film. (AmMin 87:270).
Scale: See Image.
© American Mineralogist