Week 6 Geology Warm ups Monday Oct 8 1.What are the four characteristics of minerals ( 2.1) 2.What is the most common group of minerals? What percentage of Earth’s crust do they make up? Today’s agenda: Chapter 2/3 pretest “Investigating crystal shape” Objectives: To understand the minerals are the basic building blocks of Earth

Investigate Crystal Shape 1. Read CRYSTAL STRUCTURE and Investigate Crystal Shape from page 46. Look at the procedure, materials and the questions at the end. I will be doing this lab as a demonstration. 2. Write a hypothesis for the experiment (remember the 3 words!) 3. Identify the manipulated and responding variables.

Week 6 Geology Warm ups Tuesday Oct 9 1.How are minerals different from rocks? Be specific. 2.What does it MEAN to say a mineral has a definite chemical makeup? Today’s agenda Chapter 2 “diagnostic” Read / RSG 2.1 Begin Chapter 2 vocab ( #s 7, 8, 9) Objectives: To understand that minerals are around us every day.

Week 6 Geology Warm ups Wednesday Oct 10 1.What is the second most common group of rock forming minerals? 2.How are carbonates different from silicates? Today’s agenda: Mineral properties notes/foldable Read/ RSG 2.2HMWK Vocab (#1,2,4,10,11,12) HMWK Objectives: To understand the properties used to identify minerals

Color is the most obvious property of a mineral; however it is also the least reliable.Color is the most obvious property of a mineral; however it is also the least reliable. Determine the color of a mineral by observing the sample with the unaided eye and noting its overall color.Determine the color of a mineral by observing the sample with the unaided eye and noting its overall color.

The streak of a mineral is identified by firmly rubbing a mineral sample against an unglazed porcelain tile and observing the color of its streak.The streak of a mineral is identified by firmly rubbing a mineral sample against an unglazed porcelain tile and observing the color of its streak.

Determine the luster of a mineral by observing how light reflects off its surface.Determine the luster of a mineral by observing how light reflects off its surface. Looks like metal = MetallicLooks like metal = Metallic Does not look like metal = NonmetallicDoes not look like metal = Nonmetallic

Metallic or Nonmetallic?

Describes the way a mineral breaks.Describes the way a mineral breaks. If it cleaves, then it breaks along smooth, flat surfaces.If it cleaves, then it breaks along smooth, flat surfaces.

Describe the way a mineral breaks.Describe the way a mineral breaks. If a mineral fractures, it breaks along rough edges.If a mineral fractures, it breaks along rough edges.

Determine the hardness of a mineral by using Moh’s hardness scale.Determine the hardness of a mineral by using Moh’s hardness scale. Fingernail = 2.5Fingernail = 2.5 Penny (1982 or earlier) = 3.0Penny (1982 or earlier) = 3.0 Steel nail = 5.5Steel nail = 5.5

Some minerals have unique properties that enable us to determine their identities.Some minerals have unique properties that enable us to determine their identities. TasteTaste MagnetismMagnetism BirefringenceBirefringence FluorescenceFluorescence

Birefringence

Fluorescence

Mineral Properties wulfenite colororange streakwhite lusternonmetallic cleavageyes density 6.9 hardness 3

Week 6 Geology Warm ups Thursday Oct 11 1.What is the difference between color and streak? 2.EXPLAIN and GIVE AN EXAMPLE of density. Today’s agenda: Finish notes/foldable Master Mines web activity Objectives: To understand how to use a minerals properties to identify it.

Week 6 Geology Warm ups Friday Oct 12 1.Why does a piece of gold weigh much more than a piece of pyrite that is the same size? 2.What would happen if you rubbed a mineral with a hardness value of 7 against a mineral with a value of 5? Today’s agenda: Mineral identification lab Objectives: To understand how to identify minerals using their properties