Contents of 2.7 Silicate

2.7 What are the most important minerals?

Garnets vary in color from green to red depending on the elements incorporated into the crystal structure. These color variations account for a wide variety of popular gemstones in jewelry.

Another common silicate

Garnets: a good example of ion substitution

Here we see how the various amounts of Fe, Mg, Mn, Cr, and Al affects the color range of garnet

Fig 2.27