Opal

This is an example of a fire-type common opal, demonstrating no play-of-color. — What is Common Opal? Common Opal is a specific type of opal that usually exists […]

What is Common Opal?

February 18, 2021 in Geology & Earth Science / Minerals, Gems & More by Geo Forward (updated on February 26, 2021)

A blue fire precious opal stone with blue, green red, and orange play-of-color. — What is Precious Opal? Precious opal is any type of natural opal gemstone that shows […]

What is Precious Opal?

February 18, 2021 in Geology & Earth Science / Minerals, Gems & More by Geo Forward (updated on February 26, 2021)

Blue Opal with Play — Blue Opal Gemstone The blue opal gemstone, like all other types of opal, is not […]

Blue Opal Gemstone, Science & More

July 2, 2020 in Geology & Earth Science / Minerals, Gems & More by Geo Forward (updated on April 7, 2021)

Mexican Fire Opal with Play — Fire Opal Gemstone – Geology & Mineralogy Information Fire Opal is an amorphous mineraloid comprising […]

Fire Opal Gemstone – Geology, Mineralogy & Information

June 17, 2020 in Geology & Earth Science / Minerals, Gems & More by Geo Forward (updated on July 9, 2021)