Madder – Rubia tinctorium, Rubia cordifolia, and Morinda citrifolia. Madder is one of the oldest dyestuffs known. It is most frequently used to produce turkey reds, mulberry,...
The unique artistry of Jasper is that of Nature itself - golden sunshine, a nighttime sky, poppy fields or a deep green forest, desert sands, the undulating ocean, red rock canyons, sweeping...