Igneous Rocks Flashcards
1
Q
Obsidian
A
extrusive igneous, dark (black), glassy
2
Q
Basalt
A
extrusive igneous, grey/black, fine grains
3
Q
Granite
A
intrusive igneous, dark grains, crystals
4
Q
Conglomerate
A
clastic sedimentary, base of black, large grains
5
Q
Breccia
A
clastic sedimentary, reddish, large pebbles
6
Q
Sandstone
A
clastic sedimentary, warm in colour; can be dark, rough and granular
7
Q
Coal
A
organic sedimentary, black
8
Q
Limestone
A
organic sedimentary, pale (white), granular
9
Q
Shale
A
clastic sedimentary, grey, fine grains,
10
Q
Marble
A
from quartzite, pale colours, non-foliated, metamorphic
11
Q
Gneiss
A
from granite/dolerite, pale, foliated, metamorphic
12
Q
Schist
A
from slate/phylitte, grey-ish, foliated, metamorphic
13
Q
Slate
A
from shake, grey, foliated, metamorphic
14
Q
Pumice
A
extrusive igneous, pale, rough
