you were asked to make a thin section (containing quartz in random orientations) how ould you decide that the thickness of the thin section is very close to the 0.03 mm?

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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If you were asked to make a thin section (containing quartz in random orientations) how
would you decide that the thickness of the thin section is very close to the 0.03 mm?
Transcribed Image Text:If you were asked to make a thin section (containing quartz in random orientations) how would you decide that the thickness of the thin section is very close to the 0.03 mm?
BIREFRINGENCE
Very Low
Low
Moderate
Strong
Extreme
0.001-0.005
0.005-0.010
0.010-0.020
0.020-0.035
>0.035
Shows
higher-order white
EXAMPLE
Leucite
Apatite
Microcline
Quartz
Plagioclase
Wollastonite
Hypersthene
Staurolite
Hornblende
Tourmaline
Muscovite
Zircon
Calcite
Sphene
BIREFRINGENCE
0.001
0.004
0.007
0.009
0.008-0.010
0.013-0.017
0.014
0.009-0.015
0.020-0.025
0.019-0.035
0.036-0.049
0.0420.065
0.172
0.100-0.192
Transcribed Image Text:BIREFRINGENCE Very Low Low Moderate Strong Extreme 0.001-0.005 0.005-0.010 0.010-0.020 0.020-0.035 >0.035 Shows higher-order white EXAMPLE Leucite Apatite Microcline Quartz Plagioclase Wollastonite Hypersthene Staurolite Hornblende Tourmaline Muscovite Zircon Calcite Sphene BIREFRINGENCE 0.001 0.004 0.007 0.009 0.008-0.010 0.013-0.017 0.014 0.009-0.015 0.020-0.025 0.019-0.035 0.036-0.049 0.0420.065 0.172 0.100-0.192
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