Rough opal jewelry

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Septarian Concretion: What Is It and Characteristics – Geology In
What Is a Septarian Concretion?
"Dragons Breath" a type of Mexican Fire Opal. It looks like the Eye of Sauron or a magical lightning storm.
Geology is beautiful!  Red/Pink theme this week :)
Behold a Rare Honeycomb Welo Opal
According to Geology, a fire opal “is a variety of opal that has a bright yellow, bright orange or bright red background color…Precious Opal is a name given to any opal that exhibits “play-of-color”, a flashing display of spectral colors when the opal is “played” under a light source. LEARN MORE > #geology #opal #diamonds #archaeology
Opal in Oregon – Geology In