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The rock in this image appears to be a type of jasper, specifically a brecciated jasper due to its color pattern and texture.
Jasper is an opaque, impure variety of silica, typically composed of quartz and/or chalcedony along with other mineral phases. It's known for its red color, which comes from iron(III) inclusions, but it can also be found in various other colors.
Brecciated jasper is characterized by its broken fragments that have been naturally cemented back together, often showing a mix of colors like red, yellow, brown, and sometimes even hints of purple or pink due to additional mineral impurities or oxidation states.
The texture and the way the colors blend or are segmented in this rock are indicative of this type of jasper. Jasper is commonly used for ornamentation or as a gemstone due to its durability and attractive colors.