Analyzing Diamond DataActivity #14

Key Concepts A pure substance such as a mineral, can be

identified from observations and tests performed to determine its physical properties. These properties are based on the unique structure of the substance.

Minerals are crystals that form naturally on Earth. They have characteristic properties such as color, hardness, and a crystalline shape.

Conclusions can be made by comparing experimental data to known properties.

Vocabulary Acrylic – word used to describe plastic. It is a man-made

material that can be formed into many shapes and colors.

Diamond = the hardest material. Diamonds are composed entirely of carbon atoms. Usually has an octahedron shape and comes in many colors.

Fluorite – an inexpensive, abundant material found worldwide. Comes in a variety of colors.

Glass – a non-crystalline solid that can be man-made or

occur in nature. Natural glass is formed when certain rocks melt under high temperatures.