The green caught my eye!

This rock appears to be a type of jasper, possibly a variety of yellow and green jasper. Jasper is an opaque, impure variety of silica, typically composed of an aggregate of microgranular quartz and/or chalcedony along with other mineral phases. The yellow and green coloration can be due to inclusions of iron or other minerals. Jasper is often used for ornamental or gemstone purposes due to its attractive patterns and durability. However, without a more detailed analysis or context of where it was found, this identification is speculative.