List Of Rock Types
This page is intended as a list of all unique rock types as recognized by petrologists. Names of non-rock types and archaic rock types are given as appendices.
... The following are terms for rocks that are not petrographically or genetically distinct but are defined according to various other criteria most are specific classes ... Some archaic and vernacular terms for rocks are also included ... Aphanite - an aphanitic felsic volcanic rock which confounds identification via optical means Borolanite - a variety of nepheline syenite from Loch Borralan ...
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