Various pieces including earrings, necklaces, rings
opalized wood is used for book ends also Jewelry and Ornaments
Yes, it is good on most jewelry such as gold & silver. However, do not expose opals, emeralds or pearls as it is too harsh for it.
Wayne Roland Brown's Opal jewelry can be found at his site Gondwanaland Opals.
You have to be very careful with an opal. They are very fragile and will crack. Putting them in mineral water helps them and using a cleaner made for pearls and opals will work on them. If you buy a commercial jewelry cleaner read the label to make sure it can be used on opals.
An old toothbrush and toothpaste works well but not on pearls or opals.
If you have some rough opals you would like to sell, you can bring them to a local fine jewelry store to see if they are interested. You can also sell them at online auction sites.
copper is used as base metal in gold jewelry
Opals cannot be used as foods. They are hard, precious stones.
Not really. They are soft stones, even for jewelry, but the mining of them may be causing problems.
Opals are mainly used for jewelry, ornaments, and collector specimens. They are also used for healing.
The Da Vinci Jewelry I know of is considered fine jewelry and since fine jewelry needs special care I will explain how to clean fine jewelry which will be good for all types of jewelry. A solution of half Mr. Clean and water with a small amount of ammonia can be used to clean all types of fine jewelry. Soak the jewelry piece for 15 seconds then rinse in cold water and dry. This solution is used by many jewelry stores I know of and they use it for all types of jewelry including inexpensive jewelry, fine jewelry, and even opals, and emeralds. A bowl can be used, but an ultrasonic is better. Repeat if the piece is extra dirty.
It is really good for the environment and it helps the Aus economy