Mineraloid

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Mineraloid is the time period used for the ones materials that don’t match smartly into the sort of eight training. Opal, jet, amber, and mother of pearl all belong to the mineraloids.

Snowflake Obsidian

Snowflake Obsidian is a type of volcanic glass that is primarily composed of silicon dioxide, with distinctive white or grayish "snowflake" patterns dispersed throughout...

Green Obsidian

Green obsidian is a captivating natural gemstone with a striking emerald hue, known for its intriguing origins and unique characteristics. This volcanic glass, which...

Libyan Desert Glass

Libyan Desert Glass is a rare and intriguing natural phenomenon with a history dating back thousands of years. It is a type of tektite,...
Opal from Yowah, Queensland, Australia

Opal

Opals are a unique and mesmerizing gemstone known for their distinctive play of color, making them one of the most sought-after and mysterious gemstones...

Obsidian

Obsidian is an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves into a crystalline structure. It is an amorphous material known as a "mineraloid." The result is a volcanic glass with a smooth uniform texture that breaks with a conchoidal fracture .

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Chalk vs Limestone: Differences, Formation, Properties & Uses (Complete Guide)

Chalk and limestone are two of the most common carbonate rocks on Earth, yet they represent very different geological histories, textures, and engineering behaviors....

Gemstones by Color Chart

Gemstones tell stories in color.From the glowing red of a ruby to the calm blue of a sapphire and the rich green of an...

Erosion and Weathering: Examples & Processes

The surface of our planet is constantly changing. Mountains crumble, valleys deepen, and rocks break apart over time. These transformations occur because of two...

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 PressureMetamorphic 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...