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Volcanically derived rocks contain the presence of glass indicating

Question # 00270544
Subject: Geology
Due on: 06/02/2016
Posted On: 05/03/2016 01:57 PM

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3. Volcanically derived rocks contain the presence of glass indicating:

A. Rapid cooling B. Slow cooling C. Magma composition D. constant change in water content.

4. Labradorite is common mineral in volcanic rocks belonging to the:

A. Olivine group B. Pyroxene group C. Plagioclase group D. Mica group

5. Ruby is type of:

A. Garnet B. Corundum C. Proxene D. Feldspar

6. Apatite is:

A. harder than orthoclase and softer than quartz

B. harder than fluorite and softer than orthoclase

C. harder than calcite but softer than fluorite

D. softer than both orthoclase and fluorite

Tags presence indicating contain rocks derived volcanically softer group harder orthoclase fluorite cooling rocks ruby type mica plagioclase pyroxene garnet apatite quartz calcite olivine feldspar proxene corundum volcanic rapid slow magma indicating presence derived contain composition constant

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Volcanically derived rocks contain the presence of glass indicating

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Posted On: 05/03/2016 01:57 PM
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