Crystal cluster

Dolomite druse (pink) with calcite crystals

A crystal cluster is a group of crystals which are formed in an open space environment and exhibit euhedral crystal form determined by their internal crystal structure.^[1]^[2] A cluster of small crystals coating the walls of a cavity are called druse.

^ Klein, Cornelis; Hurlbut, Jr., Cornelius S. (1985). Manual of Mineralogy (20th ed.). Wiley. p. 199. ISBN 0-471-80580-7.
^ Djikaev, Y. S.; Ruckenstein, E. (2008-11-20). "Thermodynamics of heterogeneous crystal nucleation in contact and immersion modes". The Journal of Physical Chemistry A. 112 (46): 11677–11687. arXiv:0804.0215. doi:10.1021/jp803155f. ISSN 1089-5639.

[1] Klein, Cornelis; Hurlbut, Jr., Cornelius S. (1985). Manual of Mineralogy (20th ed.). Wiley. p. 199. ISBN 0-471-80580-7.

[2] Djikaev, Y. S.; Ruckenstein, E. (2008-11-20). "Thermodynamics of heterogeneous crystal nucleation in contact and immersion modes". The Journal of Physical Chemistry A. 112 (46): 11677–11687. arXiv:0804.0215. doi:10.1021/jp803155f. ISSN 1089-5639.

[1]

[2]