Boulder Opal drilled 90

This boulder Opal has a very nice oval shape

Size 31 x 17 mm, it is drilled on the side so that you can wear it directly on a band or hoop.

Boulder-Opals make you humorous and extroverted, help to infect other people with your own joy and to survive adverse circumstances in good spirits.
Boulder Opal stimulates the lymph, kidneys and intestines and improves the supply of nutrients in the cells.

Boulder opals are a noble opal variety from Australia with opal veins on claystone.
The name comes from the old Indian "upala" = precious stone.
Already in ancient Greece (opallios) and Rome (opalus) it had this name.