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Filtering by: Subject Geology -- Oregon -- Astoria Non-Academic Affiliation Oregon State University. Extension Service

A description of some Oregon rocks and minerals

Creator:

Oregon State University. Extension Service, Dole, Hollis M. (Hollis Mathews), and Brown, Lawrence L.

Abstract:

Rocks are defined as aggregates or mixtures of minerals; rocks also include noncrystalline materials such as the natural glasses, and organic material such as coal. Rocks are found ready-made in nature. They are not homogeneous nor are they crystalline, although they may be made up of crystalline material. The composition...

Resource Type:

Learning Object

Full Text:

-H 3401L Reprinted August 2006 so Oregon State Extension OREGON DEPARTMENT OF GEOLOGY AND