Munsell Rock Color Chart 2009 Revised Edition, Geological Rock-Color Chart with genuine Munsell Color Chips (Durable Binder contains 115 Munsell Color Standards - Washable Chips) / Carta de Cores para Rochas Munsell Lavável, Model: # M50315B

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Munsell Rock Color Chart 2009 Revised Edition, Geological Rock-Color Chart with genuine Munsell Color Chips (Durable Binder contains 115 Munsell Color Standards - Washable Chips) / Carta de Cores para Rochas Munsell Lavável, Model: #  M50315B

Detalhes

Prazo de Entrega: Entre 3 a 4 Semanas. 


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Product Details


Binder Size: 6" x 7.75" x 1"Page Size: 4 3/8" x 7 1/4"

Item model number: M50315B

Shipping weight: 2lb

 

The Rock-Color Chart


The pages within this book are cleanable and can be exposed to the standard environmental conditions that are met in the field. This does not mean that the book will be able to withstand all of the environmental conditions that it is exposed to in the field. For the cleaning of the colored pages, please make sure not to use a cleaning agent or materials that are coarse in nature. These materials could either damage the surface of the color chips or cause the color chips to start to delaminate from the pages. With the specifying of the rock color it is important to remember to replace the rock color chart book on a regular basis so that the colors being specified are consistent from one individual to another. We recommend that you mark the date when you started to use the the book. There is a space provided on the pevious page. It is recommend that you replace the book after two years of use. This time frame is suggested based upon typical usage patterns and conditions.

 

Purpose

 

This chart is designed primarily for field use, although it indicates the range of rock colors for allpurposes. Names for colors other than those shown on the chart can be found in The Universal Color Language and Color Names Dictionary (publication PB 265-225, available from the U.S. Department of Commerce, National Technical Information Services {NTIS}, Springfield, VA 22161).

 

Using the chart


The chart is chiefly of value in describing the colors of medium-to fine-grained rocks but is also helpful in working with coarse-grained rocks. In describing very coarse-grained rocks, such as:  porphyritic granites, it is necessary to give the color of each mineral. The chart is designed to cover the range of the chief rock-forming minerals such as feldspar, quartz, mica, and hornblende. If the rock is not too coarse grained, a blending of the individual colors can be secured by spinning the specimen like a color disc or by looking at the rock from a short distance and thus getting a monotone that can be matched with the chips on the chart. The number and range of colors on the Rock-Color Chart are based on studies of more than 1,300 selected rock specimens collected from the United States. The colors of these rocks were plotted on the Munsell charts, which served as a basis for selecting the colors to be included. It is believed that the full range of rocks is covered by the chart, except possibly for very rare rocks of high chroma. A neutral mask is included with the chart for isolating individual colors.

 

Wet vs. Dry


For most rock colors, the chart will serve for both wet and dry specimens. It will usually be found that wetting a rock specimen merely decreases the value, that is, makes the specimen darker, but does not change the chroma. Accordingly, the Rock-Color Chart includes colors as far as possible into the dark range in order to cover wet specimens as well as dry. For the first time, the chart includes glossy chips for some of the dark colors

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