Marisol Mac. jewelry. September 04th , 2017.
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.
If you are aiming to secure an insurance policy for your antique jewelry, proper care and appraisal will be necessary. You need to appraise the jewelry so you will know how the item will be priced. That way, you can determine the current market value of the item, so you don't pay the proper and designated premium for such a piece.
Rhinestone jewelry needs to be cleaned on a regular basis and care must be taken that in the process of rhinestone jewelry cleaning, not to damage the stone itself. Cleaning rhinestone is very simple and the results are terrific.
When your valuable ring doesn't fit on your finger, a visit to your jeweler for resizing it will save you the cost of purchasing a new one. The jeweler either compresses the ring with a mallet or cuts it and re-solders it. However, remember it will change the size of the ring permanently.
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