Rocks Crossword
This printable crossword puzzle on the topic of Rocks & Minerals has 18 clues. Answers range from 6 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
An intermediate volcanic rock
A magnesium _an iron_rick extrusive igneous rock
A type of granite containing orthopyroxene
also known as dolerite – An intrusive mafic rock forming dykes or sills
An igneous rock of the charnockite series
A common type of intrusive, felsic, igneous rock with granular structure
A volcaniclastic accumulation or breccia
An iron rich, aluminium poor andesite
An igneous rock which sometimes contains diamonds
a silica-undersaturated form of andesite
a silica-undersaturated granite with <5% normative quartz
a hypersthene-bearing gabbro
Naturally occurring volcanic glass
A coarse-grained ultramafic igneous rock
an intrusive rock composed mostly of quartz
An igneous, volcanic rock, of felsic (silica-rich) composition
a coarse-grained carbonatite rock
a type of pyroxenite, composed of clinoproxene and orthopyroxene
