Bellwork 10-28-13. Obj : SWBAT explain the properties that are used in classify minerals. What comes to mind when you see this picture? List as many minerals(at LEAST 2) that you can think of.(example: gemstones). What is a mineral? 1. Must be naturally occurring 2. Must be a solid
What is a mineral?
With a partner developed some ways that you could categorize or separate different minerals?
Scientists use mineral properties to ID minerals,Some of these properties include:
Describe the color of the mineral
Azurite is blue
Corundum (ruby) is red
Describe the color of the streak on a piece of porcelain.
Hematite has a RED streak
Luster can be:
Obj: SWBAT explain the properties that are used in classifying minerals and apply the hardness test.
The Hardness scale
-Talcand graphite have a hardness of one.
-Gypsum has a hardness of 2
-Gypsum is used for drywall (sheetrock)
-Calcite and Native Copper have a hardness of 3.
-Calcite is used to make concrete!
-Fluorite has a hardness of 4
Fluorite is used to make the active ingredient in toothpaste (NaF)
-Apatite and hematite have a hardness of 5
Your teeth are made of hydroxyl apatite!
-Feldspar and Pyrite have a hardness of 6
*Chalcopyrite is an important ore of Copper
Quartz has a hardness of 7, and is used to make glass, watches, lasers, abrasives, and many other things!
Topaz occurs in many colors and is used as a gemstone (Novembers birthstone)
Topaz has a hardness of 8
Corundum has a hardness of 9.
Corundumis the gemstone ruby and sapphire, it is also used to make sandpaper and abrasives
-Diamond is the ONLY mineral to have a hardness of 10.