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Published byLester Henry Modified over 9 years ago
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Quiz on minerals Get out you ESRT and a piece of paper The following questions are from your ESRT. You’ll have a minute per question…
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Question 1 What is a minerals? –Name three things mineral must have to be a mineral.
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Question 2 What is a mineral that is nonmetallic, flexible in thin sheets, is black and has cleavage?
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Question 3 What is the chemical composition of olivine?
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Question 4 What controls a minerals property?
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Answers What is a minerals? –Solid, inorganic, naturally occurring Nonmetallic, flexible in thin sheets –Biotite What is the chemical composition of olivine –(Fe,Mg) 2 SiO 4 What controls a minerals property? –IAOA
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Rocks & Minerals The Building Blocks of society
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Igneous Rocks Made from Magma and Lava
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Igneous rocks How are igneous rocks formed? What do igneous rocks look like? What do the characteristics tell us about the rock? What are igneous rocks used for? How do you use page 6 of the ESRT for Igneous rocks?
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How are igneous rocks formed? Extrusive or volcanic - lava on the earth’s surface Intrusive or plutonic - inside the earth’s crust, magma chambers
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What do igneous rocks look like? Vesicular = gas bubbles (extrusive) Or Nonvesicular = no gas bubbles
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What do igneous rocks look like? Felsic light in color and density, rich in aluminum (continental crust) or Mafic dark in color and high in density, rich in iron and magnesium (ocean crust)
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What do igneous rocks look like? Texture can be glassy, fine grained, coarse grained, or very coarse grained
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What do the characteristics tell us about the rock? Cooled slowly in the crust = large minerals Cooled rapidly on the surface = no or very small minerals Vesicular = very gaseous lava flow
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What are igneous rocks used for?
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How to use esrt page 6 - Igneous Rocks?
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