PRECAUTIONS: See also Side Effects section.Before taking tetracycline, tell your doctor or pharmacist if you are allergic to it; or to other tetracyclines (e.g., doxycycline, minocycline), or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems.
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Native American Silversmithing Styles, and Methods. Pure silver is generally too soft for jewelry making, so it is combined (alloyed) with other metals. Sterling Silver: Sterling silver and is stamped as sterling or .925 which indicates that it is 92.5 percent pure silver. By law sterling silver must contain no less than 92.5% fine silver with the remainder being any other metal. The other 7.5 percent of the material is comprised of alloys, usually copper (which is what causes sterling silver to tarnish). Traditionally precious metals and jewelry weights are listed in grams or Troy ounces. There are approximately 31.1 grams in one Troy ounce.