There are only two real pools of capital: alternatively natural or human, external or internal, material or informational.
Natural (external, material) capital is the pre-existing wealth of the world, which was not dependent on our organization or existence: the metals we mine, the trees, the fresh water, the fisheries, solar energy, the fossil fuels, the potential for agricultural produce (as a co-location of soil, water, and climate). Human (internal, informational) capital is the value inherent in technology, skill, organization, understanding, and knowledge.