Encyclopedia > Goethite

Article Content

Goethite

Goethite is hydrated iron oxide[?], FeO(OH). Its hardness ranges from 5.0 to 5.5, and its specific gravity varies from 3.3 to 4.3. It is not generally considered very interesting as a mineral specimen; its main use is as an iron ore.

Featured Article

Digital Rights Management

... and less commercially successful variation. The Digital Millennium Copyright Act was passed in the United States in an effort to make the circumvention of such ...