Feldspathoid minerals are a group of tectosilicate minerals that resemble feldspar but have a different structure and a much lower silica content. They occur in rare and unusual magmatic rocks and are not found in rocks containing primary quartz.
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Fossils are more than ancient remains—they are windows into vanished worlds. Each fossil preserves a moment in time, capturing organisms that lived millions of...
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Top 10 Most Important Fossil Discoveries of All Time
A fossil sometimes looks just like bone turned into stone. But there are some fossils that, on day they're found, change direction of science.
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Datolite
Datolite at first glance is not stone that calls person by shouting. Doesn't scatter light like brilliant diamond, doesn't make color explosion like opal....