A rock isolated on a white background. The rock is gray and has a rough texture. It is about the size of a softball.
Palabras clave
rock,
stone,
boulder,
mineral,
geology,
nature,
solid,
rough,
surface,
texture,
weight,
heavy,
strength,
stability,
foundation,
support,
footed,
construction,
building,
material,
industry,
mining,
quarry,
excavation,
transportation,
equipment,
machinery,
tool,
safety,
protection,
environment,
conservation,
sustainability,
education,
science,
research,
discovery,
exploration,
adventure,
travel,
tour tourism,
recreation,
hobby,
collecting,
display
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