Red Jasper has a Trigonal crystal system and is in the mineral class of oxide, the quartz group. Its red to brownish red coloring comes from the presence of iron oxides. Red Brecciated Jasper, which looks like red mosaic tiles in a brown background, is also included in this group.
Red Jasper provides great assistance in our thinking processes by forming a barrier against desires that would be dangerous to our survival or self preservation. In other words, this is the one to promote your willpower and overcome thoughts and actions not in your best interest.