Volcanically derived rocks contain the presence of glass indicating
Question # 00270544
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Updated on: 05/03/2016 01:57 PM Due on: 06/02/2016
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
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Rating:
5/
Solution: Volcanically derived rocks contain the presence of glass indicating