Thursday, October 01, 2015by Bonaci Fine Jewelers
Opal is created inside the cracks of volcanic rock and is considered a mineraloid because its structure can change does not stay within certain parameters to be considered a mineral. This is due to the water in the stone, and over time the water may evaporate completely from the opal. Along with water, the structure within an opal is made up of silica. The combination of these diffracts the light passing through and creates an almost endless amount of hue combinations. Some opals appear in reds and oranges, others in hues of blue and green. These magnificent color changes have made opals and opal jewelry popular for thousands of years.
VIEW FULL ENTRY
AT: 10/01/2015 09:02:07 AM