The Munsell Rock Chart provides a convenient method for identifying rocks or layers of rocks in the field based solely on their colours. This system enables geologists and archaeologists to efficiently narrow down samples and rock formations using color as a communication tool. The guide contains 115 Munsell notations, each represented by a specific color. This is achieved through a cross-reference between ISCC-NBS colour names and Munsell’s well-known alphanumeric colour system.
Included in the colour notations are various hues such as 5R, 10R, 5YR, 10YR, 5Y, 10Y, 5GY, 10GY, 5G, 10G, 5BG, 5B, 5PB, 5P, 5RP, 5YR, 5Y, 5GY, 5G, 5B, as well as nine neutral grey tones. These notations are presented on durable, waterproof, and washable cards, a crucial feature for fieldwork when weather conditions are unpredictable. Moreover, this guide allows you to grind rock and aggregate samples into grit directly in the field. The resulting material can be spread across the pages either in a dry or wet state, facilitating a direct comparison between the rock’s color and the guide’s colors. This enhances the accuracy and ease of rock identification.
Contained within a compact ring binder, the Munsell Rock Colour Guide permits easy removal and replacement of pages as needed, making it suitable for a range of field and laboratory applications. It proves indispensable for professionals such as geologists, archaeologists, geotechnical engineers, students, and academics who require precise rock color identification in their work.