Contents of 3.1 How and where do rocks form?

Text Box: 3.1 How and where do rocks form?

Minerals, small bits of various minerals

Bits of shell; calcite or aragonite

Small glassy grains of quartz

Arrows pointing to the bits of minerals

Arrows across the image pointing to bits of shell

Some few dark grains of magnetite

Arrows point to minerals

Arrows point to small bits of calcite or aragonite

If we look closely we see minerals of various sorts

Fig 3.2b