The color of the organism's eyes would likely be the least useful piece of information for classifying it as an animal. Characteristics such as body structure, presence of a backbone, method of reproduction, and diet are more relevant in determining classification within the animal kingdom.
Color and streak would be the least useful, because they may be shared by a multitude of other minerals.
habit, color, streak, luster, density, hardness, cleavage, fracture, tenacity
Cost driving factors
The 7 characteristics of a valuable information include: 1. It must be easily understood.2. It must be comprehensive.3. It must be accurate.4. It must be simple.5. It must be flexible.6. It must be technologically up-to-date.7. It must solve the problem or at least have relevance to it.
Least facilities of
Luster is typically considered the least useful mineral property, as it does not provide much information about the mineral's identity or composition. Luster simply describes how light is reflected off the surface of a mineral, such as metallic, glassy, or dull, and can vary even within the same mineral species.
They are useful in finding the least common denominators.
Actually, they are useful. At least in some cases.
1) that it answer your question or need; 2) that it be current; 3) that it be confirmed or verified; 4) that it be measureable; 5) that it be applicable; 6) that it be testable. Read more: What are at least six characteristics of valuable information? | Answerbag http://www.answerbag.com/q_view/92144#ixzz1Be0wj0sM
Useful information on harmful effect of carpet cleaning chemicals should be found on the manufacturer's product or at least their website. It is their duty to provide that.
Color and streak would be the least useful, because they may be shared by a multitude of other minerals.