Name:__________________________ Date:_________________ Class Period:______________ Mineral vocabulary study guide Word Bank: inorganic solid chemical composition naturally occurring crystalline What is a mineral? Minerals are the building blocks of rocks. A mineral is defined as being naturally occurring or made from elements within the Earth. Minerals are not alive or were never alive. They are made of inorganic natural materials. Minerals are solid objects with crystailline faces. Each mineral has its own chemical composition that defines its characteristics. Name the 4 characteristics of a mineral. 1. naturally occurring 2. inorganic 3. crystalline solid 4. consistent chemical compostion What does it mean to be naturally occurring? a. It is made in a factory b. It was designed using an iPad c. Made from the elements in the Earth d. It was looked up on the internet What is inorganic? a. Currently alive b. Never been alive and never will be alive c. Was alive 1 million years ago d. An egg waiting to hatch What is a solid? a. An object with definite shape and volume b. An object that can change shape c. An object that has volume d. An object that fills the shape of the container it is in Crystalline faces are a result of repeating pattern of atoms. a. True b. False Name:__________________________ Date:_________________ Each mineral of the same type has a different chemical composition. a. True b. False Class Period:______________ List the 5 properties of minerals. 1. streak 2. hardness 3. color 4. cleavage and fracture 5. luster What is the least reliable test for identifying a mineral? Why? color Minerals of the same type can form in different colors. You can’t always tell what a mineral is by its color. What is the streak of a mineral? a. The color of a mineral. b. The band of color you see on the outside of a mineral. c. The way a mineral smells d. The color of the powder the mineral leaves on the streak plate. Luster is how a mineral reflects light. a. True b. False What are the two types of luster? 1. Metallic 2. Nonmetallic What are the tools used to check hardness? 1. 2. 3. 4. fingernail copper penny glass plate steel nail What is hardness? a. How strong a mineral is when you hit it with a hammer b. A minerals ability to resist scratching. c. The color on the streak plate d. How a mineral breaks Name:__________________________ Date:_________________ Class Period:______________ What is cleavage? a. The tendency of a mineral to break along smooth straight planes b. How a mineral feels in your hand c. A tool used to test streak d. The true color of a mineral What is fracture? a. The cracks in a mineral b. The hardness of a mineral c. The way a mineral looks under a microscope d. The tendency of a mineral to break on curved lines with no definite shape