Druse quartz crystals
Druse of uvarovite from the Urals; size: 18.3 cm × 13.1 cm × 2.0 cm (7.2 in × 5.2 in × 0.8 in)
Pink dolomite druse with yellow calcite crystals, Ben Hogan Quarry, Lawrence County Zinc District, Arkansas; size: 14.9 cm × 8.5 cm × 3.7 cm (5.9 in × 3.3 in × 1.5 in)

In geology and mineralogy, druse is a crystal habit represented by the coating of fine crystals on a rock fracture surface,[1] or vein or within a vug or geode.[2]

See also

References

  1. ^ Klein, Cornelis; Hurlbut, Jr., Cornelius S. (1985). Manual of Mineralogy (20th ed.). Wiley. p. 199. ISBN 0-471-80580-7.
  2. ^ "Definition of druse". Mindat.org.


source: http://en.wikipedia.org/wiki/Druse_(geology)