yellow to red ochre of california
limonite/goethite iron hydroxide
fault line volcanic
prehistoric, traditional earth ochre
yellow transforms to red with heat
try around an open flame, or an oven on high
sings on gypsum & silicate surfaces
walls, caves, tunnels, floors, old pots, limestone, leather
supports migration, movement, strength
*** comes as yellow unheated
you heat the amount you want to redden
~1/4oz, small dose
Limited 2nd Edition of 20.
California, USA series.