igneous
Granite Core Sample
Granite
AI-generated identification · may be incorrectPhaneritic texture, composed primarily of quartz, alkali feldspar, and plagioclase. Color varies depending on feldspar chemistry. High hardness (6-7 on Mohs scale).
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Physical properties
Phaneritic texture, composed primarily of quartz, alkali feldspar, and plagioclase. Color varies depending on feldspar chemistry. High hardness (6-7 on Mohs scale).
Formation & geological history
Formed from the slow crystallization of magma below Earth's surface. This specific piece is a cylindrical core sample obtained through drilling into a granite formation.
Uses & applications
Core samples are used in geological surveying, mining exploration, and construction testing to understand subsurface geology. Granite itself is widely used as a building material and dimension stone.
Geological facts
This is a small, cylindrical piece of rock, indicative of core drilling. The visible grains of different minerals (light and dark) are characteristic of a coarse-grained igneous rock like granite.
Field identification & locations
Identified by its cylindrical shape and coarse-grained, speckled appearance. Core samples are typically found in geological archives or at drilling sites.
