Index

Powder dictionary (pdCIF) version 1.0.1

_pd_char_colour

Definition:

   The colour of the material used for the measurement.
   To facilitate more standardized use of names, the
   following guidelines for colour naming developed by
   Peter Bayliss for the International Centre for 
   Diffraction Data (ICDD) should be followed. Note that
   combinations of descriptors are separated by an
   underscore.

   Allowed colours are:
     colourless, white, black, gray, brown, red, pink,
     orange, yellow, green, blue, violet.

   Colours may be modified using prefixes of:
     light, dark, whitish, blackish, grayish, brownish,
     reddish, pinkish, orangish, yellowish, greenish, bluish.

   Intermediate hues may be indicated with two colours:
   e.g. blue_green or bluish_green.

   For metallic materials, the term metallic may be added:
   e.g. reddish_orange_metallic for copper.

   The ICDD standard allows commas to be used for minerals
   that occur with ranges of colours; however this usage is
   not appropriate for the description of a single sample.

Type: char

Category: pd_char