Just my uneducated guess, it is hard to tell much from just seeing pictures, it looks like an iron rich ore, giving the rusty environmental oxidation on surface-exposed to the surface over time, the rock also may be loaded with pyrite one of the many types of iron ore.
a little study in rock type identification can help narrow down your search, hardness, luster, crystalization, acid tests, and so on can help you identify different rock types, many times these will also give clues to which metals or metallic-mineral salts or gangue materials the rock may possibly be composed of, and other such information as if it may contain arsenic, sulfur, or selenium or so on.
Assay's (there are several types and many times you may need more than one type, the assay can tell you much more, not only what values it may contain, but also give you information of processing and the dangers which will be involved, as well as possibly giving you clue to processing if needed, or at least enough information to find out how other mining operations in your area are processing the ore, are they crushing it for road gravel or mining it for gold...