How to Clean a Quartz Stone

Scrub the crystal surfaces with a dry brush to remove any loose material present. If dirt particles are difficult to remove with a dry brush, place the crystal in a colander or on a mining sieve. Wash the crystals with a water hose to remove the stubborn soil material. Let the crystals dry, and then repeat the process of dry brushing and water cleansing, if necessary.

Wash the quarts crystals with liquid dish soap and water. Use a toothbrush to clean remaining film from the specimens. Rinse the crystals using a water hose, and allow them to dry.

Clean the quartz with a chemical solution to remove remaining iron stains or bits of rock attached to the crystal. Iron stains on the crystals are often from the presence of either hematite or goethite minerals. Place the crystals in a bucket with an iron stain remover. Allow the crystals to soak until the crystal is clean. If the stains are stubborn or if bits of rock remain, you can use diluted oxalic acid or hydrochloric acid following the same method. Carefully rinse the chemical solution from the crystal with water, and allow the specimen to dry.