Nonmetallic Minerals

Nonmetallic Minerals - Figure 1.8 Two varieties of the...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Figure 1.7 Hematite. An ore of iron that has both a metallic (left) and nonmetallic (right) form. Regardless of luster or color, the streak of the mineral is characteristically red-brown. (Photo by E. J. Tarbuck) Figure 1.9 Muscovite mica (light color) and biotite mica (black) are similar in appearance, except for color. Both of these rock-forming minerals have a nonmetallic, glassy luster and one direction of cleavage. (Photo by E. J. Tarbuck)
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Figure 1.8 Two varieties of the mineral quartz. Rose quartz (left) and smoky quartz (right) each have a hardness of seven and fracture when broken. (Photo by E. J. Tarbuck) Figure 1,10 Hornblende. A generally green to black, rock-forming, amphibole mineral that often occurs in prismatic crystals (left) and has two directions of cleavage at 56° and 124° (right). (Photo by E. J. Tarbuck)...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online