The ore minerals are arranged on the circumference of a circle and represented by points. Lines connect each pair of minerals which are observed to be in contact. An arrowhead points toward the mineral replaced where replacement textures are represented. The absence of arrows indicates simultaneous deposition. Minerals formed by exsolution are attached to the primary mineral by a line to the exsolution mineral point, which is outside the hypogene ore mineral circle. Supergene minerals are arranged on an outer arc and connected by lines to the hypogene minerals which are replaced. The density of the connecting lines in the diagram indicates semiquantitatively the relative replaceability of the host minerals.