Natural emerald (Business Opportunities - Other Business Ads)
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Item ID 4270303 in Category: Business Opportunities - Other Business Ads
Natural emerald | |
J. Czochralski’s crystal pulling method became popular in the 1910s as an effective method to create durable gemstones. The method involves these steps:Radio waves melt aluminum oxide (Al2O3) in a special container,Dip a rod with a yellow sapphire crystal element at its tip into the aluminum oxide mixture,Slowly rotate and pull out the rod with its gemmed tip to form a ‘pulled’ column of sapphire | |
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| Target Prov.: All Provinces Target City : All Cities Last Update : Nov 04, 2025 12:10 AM Number of Views: 13 | Item Owner : Natural emerald Contact Email: (None) Contact Phone: (None) |
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2025-11-04 (0.525 sec)