Blue Opal Gemstone, Science & More
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Blue Opal Gemstone, Science & More

ByGeo Forward

Blue Opal Gemstone The blue opal gemstone, like all other types of opal, is not a mineral. Instead, it is an amorphous mineraloid, which means it is a substance that comprises a specific arrangement of smaller microcrystalline silicas, which result in a blue spectrum of light reflection. Blue opal has an appealing luster and appearance,…

Fire Opal Gemstone – Geology, Mineralogy & Information
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Fire Opal Gemstone – Geology, Mineralogy & Information

ByGeo Forward

Fire Opal Gemstone – Geology & Mineralogy Information Fire Opal is an amorphous mineraloid comprising an accumulation of tiny hydrated silica spheres that produce a dominant reddish-orange spectrum upon light reflection. Although it is commonly misclassified as a “mineral,” fire opal is actually not a mineral because it does not have its own crystalline structure….