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Vaibhav singh Asked a Question
April 21, 2021 5:12 pmpts 30 pts
Why Opal becomes partly crystalline with geologic time??Do all mineraloids become partly crystalline with geologic time?? If not,then why only Opal?
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  • Vaibhav singh
    Sir ..I need one more clearance ----Q. Sir Are Precious Opals and Common Opals are types of Minerlaoid Opal. Why Precious opal is called precious?? Can I say because precious opal ...
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  • Sajan sarthak Best Answer
    Opal is by far sited as one substance which is partly crystalline. That's why it's pronounced as mineraloid...that directly doesn't mean it's a mineral because for being a mineral ...
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  • Sajan sarthak thankyou
    Precious opal displays play-of-color (iridescence), common opal does not.Play-of-color is defined as "a pseudo chromatic optical effect resulting in flashes of colored light from c...
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    Vaibhav singh
    I do nat understand where you answered my Question. Sir
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