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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Basalt vs Granite – Key Differences
Basalt and granite are among the most common and important igneous rocks on Earth. Both form from molten magma, but under very different conditions.Basalt...
10 Minerals That Changed the Course of Human History
Throughout human history, minerals have been far more than just stones beneath our feet — they’ve been the very foundation of progress. Each era...
List of Black Gemstones: The Geology, Formation, and Symbolism
Black gemstones represent one of the most fascinating intersections between geology and human culture.Their deep colors — produced by iron oxides, carbon inclusions, and...
Metamorphic Rocks: Foliation, Lineation, and Metamorphic Grades
Introduction: The Transformation of Rocks Under Pressure
Metamorphic rocks are the result of an incredible transformation. When existing rocks—whether igneous, sedimentary, or even older metamorphic...
Mineral Identification Chart for Beginners
Understanding how to identify minerals is one of the most essential skills in geology. Minerals form the building blocks of rocks, and learning to...
The Rarest Gemstones on Earth and Their Geological Origins
A Hidden World Beneath the Surface
Deep within the Earth’s crust, where intense pressure and heat shape the minerals of our planet, nature hides some...
Granite in Engineering and Design: Composition, Properties and Modern Uses
Granite is one of the most recognizable and most used intrusive igneous rocks on Earth. It is hard, resistant to weathering, aesthetically attractive, and...
10 Fun Geology Experiments You Can Do at Home
You don’t need a laboratory or expensive equipment to explore the wonders of geology. The Earth’s secrets can be discovered right at home —...