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.
Bloodstone, also known as heliotrope, is a green gemstone dotted with bright red spots of iron oxide. Pearl. Pearls are products of bivalve mollusks (mainly oysters and mussels). They are built up of nacre, which is mainly calcium carbonate in the form of aragonite crystals.