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WorksheetsIgneous Rock ID
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Igneous rock #1
* extrusive
*non-vesicular
*low-density
*can contain over 50% Feldspar
* extrusive
*non-vesicular
*low-density
*can contain over 50% Feldspar
a)
dunite
b)
obsidian
c)
granite
d)
pumice
2.
Igneous rock #2
*non-crystaline
*vesicular
*higher density
*more mafic
*non-crystaline
*vesicular
*higher density
*more mafic
a)
pumice
b)
obsidian
c)
scoria
d)
vesicular basalt
3.
Igneous rock #3
*non-crystaline
*vesicular
*low density
*more felsic
*floats on water
*non-crystaline
*vesicular
*low density
*more felsic
*floats on water
a)
pumice
b)
obsidian
c)
scoria
d)
vesicular basalt
4.
Igneous rock #4
*crystals less than 1mm
*non-vesicular
*low density
*more felsic
*a lot of potassium feldspar
*crystals less than 1mm
*non-vesicular
*low density
*more felsic
*a lot of potassium feldspar
a)
granite
b)
rhyolite
c)
andesite
d)
diorite
5.
Igneous rock #5
*crystals less than 1mm
*non-vesicular
*medium density
*medium composition
*no potassium feldspar
*crystals less than 1mm
*non-vesicular
*medium density
*medium composition
*no potassium feldspar
a)
granite
b)
rhyolite
c)
andesite
d)
diorite
6.
Igneous rock #6
*crystals are 8mm
*non-vesicular
*higher density
*mafic composition
*a lot of pyroxene
*crystals are 8mm
*non-vesicular
*higher density
*mafic composition
*a lot of pyroxene
a)
granite
b)
rhyolite
c)
andesite
d)
diorite
7.
Igneous rock #7
*crystals are 4mm/ course
*non-vesicular
*lower density
*felic composition
*a lot of quartz
a)
granite
b)
rhyolite
c)
andesite
d)
diorite
8.
Igneous rock #8
*crystals are 4mm/ course
*non-vesicular
*lower density
*felic composition
*a lot of quartz
*crystals are 4mm/ course
*non-vesicular
*lower density
*felic composition
*a lot of quartz
a)
granite
b)
rhyolite
c)
andesite
d)
diorite
9.
Igneous rock #9
*crystals are 5mm/ course
*non-vesicular
*lower density
*felic composition
*a lot of quartz
*crystals are 5mm/ course
*non-vesicular
*lower density
*felic composition
*a lot of quartz
a)
granite
b)
rhyolite
c)
andesite
d)
diorite
10.
Igneous rock #10
*crystals are 4mm/ course
*non-vesicular
*medium density
*felic/ mafic composition
*no Potassium Feldspar
a)
granite
b)
rhyolite
c)
andesite
d)
diorite
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