1 Mineral Id Homework Worksheet 3 25 with citations-1 (1)

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Temple University *

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2001

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Geology

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Dec 6, 2023

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Mineral Identification Practice Worksheet Name: Name the physical property described by the statement below. Scratches glass Shines like a metal Produces a grey powder Feels grainy Breaks along smooth planes Feels very heavy List the cleavage of the mineral named below. Include both the number of cleavage planes and the angle between them. Biotite Mica Galena Orthoclase Feldspar Quartz Calcite 1

What physical property can be used to distinguish. Halite from Calcite Pyroxene (Augite) from Amphibole (Hornblende) Biotite mica from Muscovite mica Gypsum from Fluorite Name a mineral that exhibits this diagnostic physical property. Multiple colors Fracture Vitreous luster One direction of cleavage Metallic luster Fizzes with HCl How is Habit different from Cleavage? 2

Explain how a mineral can have a high specific gravity while it has a low hardness number. Give one mineral example. Thinking about the Mohs Hardness Scale , If a mineral scratches glass, it is harder than this number? If you can scratch the sample with your fingernail, the mineral is softer than this number? Using the following 10 (ten) images: 1) What physical property is represented in the mineral image? 2) Try to identify the mineral by name. Image 1: openpress.usask.ca CC BY 4.0 L Hauber & Joyce McBeth 3

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