This printable crossword puzzle on the topic of Rocks & Minerals has 21 clues. Answers range from 4 to 19 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
What mineral is used as an ore of sulfur, has a green/black streak, and is often called "fool's gold"
What mineral is used in construction materials, is flexible in thing sheets, and is black to dark brown in color
what mineral is used in furnace bricks and jewelry, is commonly light green and granular, and is green to brown or gray in color
what mineral is used in drywall, is easily scratched by fingernail, and is white to pink or gray in color
what mineral is used as an ore of iron, has a black streak, and is magnetic
what mineral is used in hydrofluoric acid, cleaves in four directions, and is colorless or variable in color
what mineral is used in ceramics and glass, cleaves in two directions and has visible striations, and is white to gray in color
what mineral is used as an ore of iron and in jewelry, has a red/brown streak, and is metallic silver to earthy red in color
what mineral is used in glass, jewelry and electronics, has a glassy luster, and may form hexagonal crystals
what mineral is used as a food additive and to melt ice, has a salty taste, and is colorless to yellow in color
what mineral is used in jewelry and abrasives, often seen as red glassy grains, is dark red to green in color
what mineral is used in ceramics and glass, cleaves in two directions at 90 degrees, and is white to pink in color
what mineral is used in building stones, bubbles with acid, and is colorless or variable in color
what mineral is used in ceramics and paper, has a greasy feel, and is white to green in color
what mineral is used in paint and roofing, is flexible in thin sheets, and is colorless to yellow in color
what mineral is used in cement and lime, bubbles with acid, and is colorless or variable in color
what mineral is used in pencil leads and lubricants, has a black streak and greasy feel, and silver to gray color
what mineral is used in sulfuric acid, has a yellow/white streak, and is yellow to amber in color
what mineral is used in mineral collections and jewelry, cleaves at 56 and 124 degrees, and is black to dark green in color
what mineral is used in mineral collections and jewelry, cleaves in two directions at 90 degrees, and is black to dark green in color
what mineral is used as an ore of lead and in batteries, has a gray/black streak and black to silver color