// cpt-city: bgs/sand (cpt)
//
// British Geological Survey, schemes from the GeoIndex site
//
// author: British Geological Survey
// copyright: Crown Copyright, UK Open Government Licence for Public Sector Information v3.0
// year: 2026
// url: https://phillips.shef.ac.uk/pub/cpt-city/bgs
#declare sand =
color_map {
  [0.00000 color rgbf <0.4784,0.1686,0.0196,0.0000>]
  [0.10000 color rgbf <0.6118,0.2118,0.0118,0.0000>]
  [0.20000 color rgbf <0.7569,0.2784,0.0118,0.0000>]
  [0.30000 color rgbf <0.8667,0.3725,0.0431,0.0000>]
  [0.40000 color rgbf <0.9412,0.4824,0.0980,0.0000>]
  [0.50000 color rgbf <0.9882,0.6000,0.1647,0.0000>]
  [0.60000 color rgbf <0.9961,0.7216,0.2706,0.0000>]
  [0.70000 color rgbf <0.9922,0.8235,0.4275,0.0000>]
  [0.80000 color rgbf <0.9961,0.9059,0.6000,0.0000>]
  [0.90000 color rgbf <0.9961,0.9608,0.7255,0.0000>]
  [1.00000 color rgbf <1.0000,0.9882,0.8353,0.0000>]
}