Dye wood, fungi, and lichens. Most dyes are synthetic, i.e., are man-made from petrochemicals. Other than pigmentation, they have a range of applications including organic dye lasers, optical media (CD-R) and camera sensors (color filter array). Textile dyeing dates back to the Neolithic period. Throughout history, people have dyed their textiles using common, locally available materials. Scarce dyestuffs that produced brilliant and permanent colors such as the natural invertebrate dyes Tyrian purple and crimson kermes were highly prized luxury items in the ancient and medieval world. Plant-based dyes such as woad, indigo, saffron, and madder were important trade goods in the
HMS Tyrian (R67) pennant number F67. From August 1952 until 1956 she was part of the 2nd Training Squadron at Portland. In 1953 she took part in the Fleet Review to celebrate the Coronation of Queen Elizabeth II. In November 1956 "Tyrian" was placed in reserve at Chatham. Between 1957 and 1965 she was part of the Lisahally reserve. She was subsequently sold for scrap and arrived at Troon for breaking up on 9 March 1965. HMS Tyrian (R67) HMS "Tyrian" was a S-class destroyer built for the Royal Navy during the Second World War. "Tyrian" displaced at standard load and at deep