10 of 49 Crossword-Questions containing the word QUARTZ
7 on the Mohs scale A HARD GLOSSY MINERAL CONSISTING OF SILICON DIOXIDE IN CRYSTAL FORM A TRANSLUCENT MINERAL CONSISTING OF HYDRATED SILICA OF VARIABLE COLOR ABUNDANT MINERAL AMETHYST MONTH Amethyst or citrine Amethyst or jasper Amethyst, e.g. AN ONYX CHARACTERIZED BY PARALLEL LAYERS OF SARD AND A DIFFERENT COLORED MINERAL ARENACEOUS rocks, component of view all