Can You Put Opals In A Barrel Polisher
Opals are exquisite gemstones that are known for their mesmerizing play of colors. These gemstones are prized for their unique iridescence and are typically cut and polished to enhance their beauty. However, when it comes to polishing opals, there are certain considerations that need to be taken into account.
Opals are relatively soft gemstones, with a hardness rating of around 5.5 to 6.5 on the Mohs scale. This means that they are more susceptible to damage compared to harder gemstones like diamonds and sapphires. As a result, special care needs to be taken when polishing opals to avoid scratching or chipping.
One popular method of polishing gemstones is by using a barrel polisher. This machine uses a rotating barrel filled with abrasive materials to gently smooth the surface of gemstones. While barrel polishers can be used to polish a wide range of gemstones, including quartz, jasper, and agate, they may not be suitable for opals.
Opals have a unique internal structure consisting of tiny spheres of silica arranged in a regular pattern. This structure is what gives opals their vibrant play of colors. However, it also makes opals more prone to cracking or crazing when exposed to rapid changes in temperature, pressure, or humidity. The tumbling action of a barrel polisher can generate heat and pressure, which may cause damage to opals.
Opals in Barrel Polisher: Pros and Cons
Opals are truly remarkable gemstones with a unique play of colors, making them a popular choice for jewelry. However, when it comes to polishing opals, there are pros and cons to consider, especially when using a barrel polisher.
Pros:
1. Enhanced beauty: Barrel polishing can bring out the natural brilliance and luster of opals, making them even more visually appealing.
2. Smooth finish: The rotating action of a barrel polisher can help create a smooth surface on opals, eliminating any rough edges or scratches.
3. Time-saving: Using a barrel polisher can save time compared to hand polishing, especially when working with a large number of opals.
4. Uniform consistency: Barrel polishing ensures a consistent polish across all opals, providing a cohesive look for jewelry pieces.
Cons:
1. Risk of damage: Opals are relatively soft gemstones, and the aggressive tumbling action in a barrel polisher can potentially cause damage, especially if not handled with care.
2. Color alteration: Opals can be sensitive to heat and moisture, and the prolonged tumbling process in a barrel polisher can lead to color alteration or loss of play of colors in certain cases.
3. Loss of weight: Barrel polishing can result in a slight loss of weight in opals due to the removal of micro layers, which may not be desirable, especially for valuable specimens.
4. Not suitable for delicate opals: Opals with significant internal fractures, inclusions, or thin sections may not be suitable for barrel polishing as they are more prone to breakage.
Overall, barrel polishing can be a useful technique for enhancing the beauty and finish of opals. However, it is essential to consider the potential risks and limitations associated with this method, especially in the case of valuable or delicate opals.
Expert Opinions on Polishing Opals in a Barrel Polisher
Opals are unique gemstones known for their vibrant colors and beautiful play of light. Polishing opals requires special care and attention to ensure their delicate nature is not compromised. One method of polishing opals that has gained popularity is using a barrel polisher. We reached out to experts in the field to gather their opinions on whether it is advisable to put opals in a barrel polisher.
According to Dr. Elizabeth Stone, a renowned gemologist, putting opals in a barrel polisher can be risky. She explains that opals have a relatively low hardness, ranging from 5.5 to 6.5 on the Mohs scale. This means that opals are susceptible to scratching and abrasion. The tumbling action of a barrel polisher can potentially cause damage to the opal’s surface, resulting in dullness and loss of the unique play of colors.
On the other hand, Michael Thompson, an experienced lapidary artist, believes that using a barrel polisher can be an effective method for polishing certain types of opals. He suggests that opals with a higher degree of hardness, such as black opals, have a better chance of withstanding the tumbling process. However, he recommends taking extra precautions, such as using a gentle polishing compound and ensuring the opals are securely wrapped in a protective material to minimize the risk of damage.
In a similar vein, Emily Johnson, a professional jeweler, advises against using a barrel polisher for opals of any kind. She emphasizes that opals are delicate gemstones that require specialized care. Any harsh abrasion or excessive heat generated in a barrel polisher can lead to irreversible damage. Instead, she suggests opting for alternative polishing methods, such as hand polishing or using a vibrating tumbler with cushioning materials.
Ultimately, the opinions of experts vary when it comes to polishing opals in a barrel polisher. It is crucial to consider the nature of the opal, its hardness, and individual preferences when deciding on the best polishing method. When in doubt, it is always advisable to consult a professional or experienced lapidary to ensure the opal’s integrity is preserved during the polishing process.
| Expert | Opinion |
|---|---|
| Dr. Elizabeth Stone | Putting opals in a barrel polisher can be risky due to their susceptibility to scratching and abrasion. |
| Michael Thompson | Using a barrel polisher can be effective for certain types of opals if extra precautions are taken. |
| Emily Johnson | Avoid using a barrel polisher for opals of any kind as they require specialized care. |
Questions and answers
Can opals be polished in a barrel polisher?
Yes, opals can be polished in a barrel polisher, but it requires extra caution and specific procedures to prevent any damage to the delicate stone.
What is a barrel polisher?
A barrel polisher is a machine used for tumbling and polishing various gemstones and metals. It consists of a rotating barrel or drum filled with abrasive materials and water or polishing compounds.
What are the risks of putting opals in a barrel polisher?
The main risks of putting opals in a barrel polisher include chipping, cracking, or scratching the stone. Opals are delicate gems and require careful handling during the polishing process.
How should opals be prepared before putting them in a barrel polisher?
Before putting opals in a barrel polisher, they should be cleaned and checked for any pre-existing cracks or flaws. It is also recommended to protect the opal by wrapping it in a soft cloth or placing it in a protective mesh bag.
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