Minerals
Geological Time
Rocks and Formations
Fun Facts
People
100

The hardest mineral

What is diamond?

100

This is the approximate age of the Earth

What is 4.5 billion years old?

100

A type of rock formed by the altercation of a previous rock when subjected to high temperatures, high pressures, and/or hydrothermal fluids

What are metamorphic rocks?

100
The most abundant element in Earth's crust

What is oxygen?

100

The president of the undergraduate Geology Club

Who is Jack?

200

Crystalline formations found on cave ceilings

What are stalactites?

200

This period started 358.9 Ma and had large coal deposits

What is the Carboniferous?

200

This "B" hill has steep sides and a flat top

What is a butte?

200

The Peru-Chilean Trench is this type of fault boundary

What is a convergent plate boundary?

200

A victim of premature death via asbestos

Who is Blake?

300

The element responsible for the red color in rubies

What is chromium?

300

The Stegosaurus lived during this period

What is the Jurassic Period?

300
An assortment of angular clasts cemented in a fine-grained matrix

What is breccia?

300

This "fire of the desert" is the national gemstone of Australia

What is opal?

300

Volcanos are named after this Roman god of fire

Who is Vulcan?

400

The chemical formula of dolomite

What is CaMg(CO3)2?

400

This era of the Proterozoic eon saw the development of "Snowball Earth"

What is the Neoproterozoic?

400

This formation is made after the collapse of land during/after a volcanic eruption

What is a caldera?
400

In this decade, the theory of Plate Tectonics became widely accepted

What is the 1960s?

400

The Department Chair of Earth, Atmosphere, and Climate

Who is Kristie Franz?

500

The rarest mineral on Earth, kyawthuite, was found in this country

What is Myanmar?

500

This period of the Cenozoic Era saw the evolution of the first primates

What is the Paleogene?

500

The only rock that floats in water

What is pumice?
500

This is the name of the boundary between the crust and the mantle

What is the Moho?

500

The founding father of modern geology

Who is James Hutton?