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Polarised LM of a thin section of quartz porphyry
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Polarised LM of a thin section of quartz porphyry
Polarised light micrograph of a thin section of quartz porphyry, a type of igneous rock. Essential mineral components include quartz, alkaline feldspar and biotite. The large coloured crystals visible here are of quartz and feldspar. Large crystals, like these, embedded in a fine grained matrix are known as phenocrysts. The rock is used for building and decoration, as well as for roadbeds, ballast, grindstones and gravel. Magnification: x11 at 6x6cm size
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Media ID 6344009
© PASIEKA/SCIENCE PHOTO LIBRARY
Earth Science Geological Igneous Rock Quartz Rock Rocks Light Micrograph Porphyry
EDITORS COMMENTS
This print showcases a polarised light micrograph of a thin section of quartz porphyry, an intriguing type of igneous rock. The essential mineral components that form this rock include quartz, alkaline feldspar, and biotite. As we delve into the image, our attention is immediately drawn to the large coloured crystals that dominate the frame - these are none other than quartz and feldspar. These magnificent crystals embedded within a fine-grained matrix are scientifically referred to as phenocrysts. Beyond its scientific significance, this versatile rock serves various practical purposes in our everyday lives. Quartz porphyry finds extensive use in construction and decoration due to its aesthetic appeal. Additionally, it plays a vital role in roadbeds, acting as ballast for stability and durability. Moreover, this robust material is employed in crafting grindstones for sharpening tools and producing gravel for multiple applications. The intricate details captured through magnification at x11 on a 6x6cm scale allow us to appreciate the mesmerizing beauty hidden within Earth's geological wonders. This stunning photograph not only provides insight into the composition and structure of rocks but also reminds us of their immense value in both scientific research and human activities related to infrastructure development and design aesthetics.
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