Mineral Aggregates

Aggregates of mineral crystals may occur in many forms, including:

* Botryoidal
* Columnar
* Coxcomb
* Druse
* Fibrous
* Geode
* Mammillary
* Massive
* Micaceous
* Oolitic
* Pisolitic
* Radiating
* Reniform
* Stalactitic
* Wheat Sheaf

Chesterman, pp. 40–41

# Sources[edit]

* Chesterman, Charles W. The Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf: New York (1987)