5th Period ID Minerals

True or False: Minerals and rocks are the same. true false True or False: Minerals can be a solid, liquid, or gas. true false True or False: Diamonds are the hardest naturally occurring mineral on Earth. true false True or False: Table salt is a mineral. true false True or False: Some minerals can be scratched with a finger nail. true false True or False: The physical property of color is the best identifier of a mineral. true false Identify the Mineral The table below shows a list of different minerals and their physical properties. Read the descriptions of three unknown minerals and use the table to identify the unknown minerals. Mineral Description Identification Unknown Mineral #1 The mineral is white in colorA soft mineral, hardness about 1Dull, not shinyBreaks along smooth edges (cleavage) Talc Unknown Mineral #2 The mineral is black in colorThe hardness of the mineral is about a 5.5Nonmetallic lusterHas smooth flat edges (cleavage) Amphiboles Unknown Mineral #3 The mineral is sliver in colorShiny (metallic)Hardness is about 6 to a 6.5Has rough edges (fracture) Magnetite What property was the most useful in helping you identify the minerals? What property was the least useful in helping you identify the minerals? Explain: Physical Properties of Minerals A mineralis a naturally formed inorganic solid that has a crystal structure.Minerals can be identified by their physical properties. Hardness describes how easily a mineral can be starched. Luster is the way the surface of a mineral reflects light. Streak is the color of a mineral in powdered form. Cleavage is the ability of minerals to break along smooth even edges. Fracture is when minerals break in unpredictable patterns and have jagged edges. Physical Properties Identify the physical property presented in each scenario. There may be more than one answer. Jasmine has green emerald earrings. color streak hardness luster cleavage fracture Ms. Head’s diamond bracelet sparkles in the light. color streak hardness luster cleavage fracture When Sebastian rubs a piece of hematite on the road it creates a red line. color streak hardness luster cleavage fracture Mr. Hernandez’s gold watch is shiny. color streak hardness luster cleavage fracture Jennifer’s talc bracelet easily scratches with a nail. color streak hardness luster cleavage fracture Mr. Graham chose a topaz ring for his wife because the edges are smooth and even. color streak hardness luster cleavage fracture Adrian’s sliver crayfish tool doesn’t easily reflect sunlight. color streak hardness luster cleavage fracture Patricio uses a diamond to scratch a piece of fluorite he found in his mother’s car. color streak hardness luster cleavage fracture Ms. Watson prefers blue flowers over red flowers. color streak hardness luster cleavage fracture Edgar found a rough jagged mineral on his mile run. color streak hardness luster cleavage fracture Ms. Hooper marveled at her perfectly cut, smooth emerald stone. color streak hardness luster cleavage fracture Mr. Ruiz knew the diamond ring was fake because he was able to scratch it with his fingernail. color streak hardness luster cleavage fracture Mr. Schmidt use Mohs scale to determine this physical property color streak hardness luster cleavage fracture Identify the mineral by using the chart below. Description of Mineral #1 – White in color, hardness is 2, and the mineral has a glassy luster. Description of Mineral #2 – Clear, hardness is 3, pearly luster, and breaks along smooth edges. Description of Mineral #3 – Green in color, hardness is 6.5, and streak color is yellow.