What term describes spots of color near the surface of a jadeite boulder?

The term that accurately describes spots of color near the surface of a jadeite boulder is known as "show points." This term is used specifically in the context of jadeite to refer to the areas where color is visibly present and accessible due to the surface characteristics of the boulder. Show points can enhance the overall appearance and desirability of the jadeite, as they provide distinct visual impact when viewed.

"Color zoning" generally refers to variations of color that occur in different layers of a gemstone but does not specifically indicate surface color variations. "Skin hue" often describes the color seen on the exterior of a stone but is less precise in denoting specifically colored spots. "Color flashing," while relevant to some gemstones in different contexts, indicates a play of color or shifting hues rather than isolated spots of color as seen on the surface of jadeite. Thus, "show points" is the most appropriate term for this phenomenon in jadeite boulders.