Before we begin our new chapter… Please fold a triangle divider into your notebooks and write the following on it: Chapters 2 & 3 – Rocks and Minerals

Try to keep your notebooks organized like this…

I. Minerals What is a Mineral? Naturally occurring Inorganic solid Not man made Inorganic solid Does not come from something that was once living Has a crystal structure The particles of a mineral, or crystals, are arranged in certain patterns. Composed of different elements

I. Minerals How can we identify minerals? Hardness Color Streak Luster Mohs Hardness Scale Color Easily observed property; can only be used for minerals that have the same color consistently (all the time) Streak The color of a mineral’s powder; found by rubbing the mineral on a blank tile called a streak plate Luster The reflectivity of the mineral; is it shiny, dull, glassy, metallic? Density The mineral’s mass per unit…regardless of size, density remains the same

Let’s Practice Identifying Mineral Properties Mica Sulfur

Let’s Practice Identifying Mineral Properties Galena Quartz

HOMEWORK Read Chapter 2, Section 1 (pages 46-54) Index Cards for bold vocabulary words found on pages 46-54 Section 1 Review, question # 1 and 5