jewelry. Wednesday , July 12th , 2017 - 06:02:52 AM
First and foremost, tanzanite jewelry is not something you wear regularly or on a daily basis. It is not resilient enough to tolerate the wear and tear of say housework, and should be worn for short periods or on special occasions.
Step 4: Compare the word you just hammered down to your original word on paper. If it is fine, then keep it up; otherwise, make final adjustments with your hands.
There are some stones that are very difficult to polish. Only course grit or medium grit is used for one to three days when Wonderstone, which is a soft rhyolite, is tumbled. This produces nice, rounded stones which show the colors and banding well. Sandstone, calcite, onyx, limestone, glass, and obsidian also fall into the category where there may be veins in the rock that will not polish. Some types of rocks are brittle, which means that they tend to chip instead of getting polished. Other reasons for the stones to remain unpolished are process-related. If the earlier stages are rushed, then scratches are left in the rocks that the later stages cannot recover from. If the tumbler and stones are not cleaned well between stages, then the grit from a previous stage could be scratching the rocks and preventing them from polishing. If you have a mixture of harder stones and softer stones in your tumbler, only the harder stones will take a high luster polish. Best results are achieved when all the rocks in a batch have similar hardness. If a stone breaks during the later stages of tumbling, the sharp edges will scratch the other stones, so get rid of them before the final stages of polishing.
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