Jasper is considered opaque microcrystalline quartz or chalcedony. It can have different colors with respect to its inclusions, they can encompass 20% of different minerals. Sometimes it is created together with agate, opal or some fossilized material.
Dalmatian jasper is a type of white jasper that has black spherical inclusions. Jasper’s name originates from the Greek (iaspis), which means stained stone. It is found in hydrothermal reefs, volcanic rocks, and sedimentary rocks.