Labradorite, a rock that consists of aluminum, calcium, and sodium silicates. It is a variety of feldspar, found in dark gray crystalline masses that are easily split into slabs. Some varieties of labradorite are beautiful when polished, showing rich shades of blue, green, and bronze. Labradorite is used for table tops and for small ornamental objects. It is found in parts of Europe and the United States, but the finest grade occurs in Labrador.
In "Indiana Jones and the Last Crusade," Dr. Jones battles the Nazis for the Holy Grail. Did the Nazis really have an interest in archaeology? And if so, what fueled it?
Paleontology, the study of fossils, or plant and animal remains from past geologic time.