Illustration of a Natural Smooth Rock - Free Clipart for Geology & Education #266864 (License: Personal Use)

This grayscale line-art illustration depicts a rounded, smooth rock with subtle surface striations suggesting natural weathering. The minimalist design emphasizes form and texture without color distraction, making it suitable for print or digital use in science education, infographics, or icon sets. Its clean edges and neutral style allow easy integration into diverse layouts.

Used in educational websites, geology lesson plans, children’s science books, or nature-themed blogs to visually represent sedimentary or metamorphic rocks. Matches user intent for free, royalty-free illustrations of geological specimens.