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Cleaning Your Specimens

Wash carefully to remove dirt. If soaking in acids or other solutions, try an inferior specimen first. When working with acids, remember the three A * s ALWAYS ADD the ACID to the water. Keep your solution fairly clean for best results. OXALIC acid is useful for rust stains, MURIATIC acid for removing hematite stains, and HYDROCHLORIC acid is the best for removing black manganese stains.

When using ANY of these solutions: WEAR PROTECTIVE CLOTHING. GOGGLES AND RUBBER GLOVES.

HOUSEHOLD BLEACH is fine for removing many stains, but please DO NOT MIX HOUSEHOLD BLEACH AND ACID. The results could be tragic.

By Roy Horsman (Reprinted from THE ROCK VEIN, The Newsletter of the Winnipeg Rock and Mineral Club, Mar./Apr. 2000, p. 5)