Mineral Test #1 Crossword

This printable crossword puzzle on the topic of Rocks & Minerals has 15 clues. Answers range from 4 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

fool's gold
made of seventy percent iron
used as a dry lubricant to help machine parts run smoothly
magnetic
used in pencils
used to make paints
the major rock-forming mineral in limestone and marble
occurs in deposits left by lakes and seas that have evaporated
rock salt
Blue John is one type that is beautiful too look at
red gemstone
rock-forming minerals that are rich in iron and magnesium
breaks off in thin sheets
smells like rotten eggs
forms when magma that's rich in magnesium and iron is erupted from volcanoes