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SP19 Delaware: Its Rocks, Minerals, and Fossils

SP19 Delaware: Its Rocks, Minerals, and Fossils
Publication Type:
Special Publication
Publication Date:
Jul 1992
DGS Staff

Minerals are naturally occurring, inorganic substances with characteristic physical and chemical properties. Common examples found in Delaware are quartz (hard, glassy luster), mica (cellophane like pieces), and feldspar (waxy or pearly luster, cleavage). In nature minerals are usually found in mixtures with other minerals. A natural specimen containing several minerals is called "a rock." A common example is granite, which is a mixture of quartz, feldspar, mica, and usually other dark minerals. Fossils are any evidence, direct or indirect, of a pre-existing plant or animal in the rock record. The most popular area for collecting fossils in Delaware is the Chesapeake and Delaware Canal area.

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Please give proper credit to the Delaware Geological Survey.

DGS Staff, 1992, Delaware: Its Rocks, Minerals, and Fossils: Delaware Geological Survey Special Publication 19.

Contact Info

Delaware Geological Survey
Phone: (302)-831-2833
Fax: (302)-831-3579

University of Delaware
Delaware Geological Survey Building
Newark, DE 19716
Mon - Fri; 8:00am to 4:30pm