Garmin 6 Pin Transom Mount Transducer with Depth and Temp. The Garmin Transom Mount Dual Frequency 50/200khz Transducer provides accurate depth and temp readings to your GSD 20/21/22, Garmin Chartplotter/Sounder or Garmin Fishfinder.
Bloodstone is a silicon dioxide and a variety of chalcedony, which is a form of cryptocrystalline quartz. It is a dark green color gemstone with red spots on it. The gemstone is technically a green jasper with presence of iron oxide giving the stone the red spots.
Natural History. Bloodstone, or heliotrope, is green chalcedony with flecks of red due to the presence of iron oxide. Yellow or red jasper may also be present. It is found in India, Brazil, China, Australia and the United States.Another name for bloodstone is heliotrope.loodstone, or heliotrope, is green chalcedony with flecks of red due to the presence of iron oxide. Yellow or red jasper may also be present.