Description of Munsell Rock Color Book

• Munsell's Rock Color Book provides durable, portable charts for accurately classifying and assessing rock color samples in the field. These charts help geologists and archaeologists communicate colors more effectively by cross-referencing ISCC-NBS (Inter-Society Color Council-National Bureau of Standards) color names with unique Munsell alphanumeric color notations for rock color samples. The rock color chart here has been revised from the previously published Geological Society of America (GSA) Rock Color Chart.
  
  Munsell Rock Color charts are sturdy enough to evaluate samples where you need them most - out in nature. The charts can be used to assess rock color when wet or dry, and for medium-sized, fine, or coarse-grained rocks. While your rock color chart is made to be cleaned and withstand harsh conditions, damage and fading may require periodic replacement. Remember, it's always better to use new charts to look at old rocks than the other way around!