partially_surrounded_by has quality derives from liquid water fresh water frazil 2019-01-14T21:09:21Z Small, needle-like (spicules), plate-like, or discoid crystals derived from nearly pure fresh water, suspended in a water body. envoPolar Needs to have axioms added pertaining to the semantics of colloids and suspensions once they have been resolved see: https://github.com/pato-ontology/pato/issues/91#issuecomment-290711238 Currently the new ice classes are not specific to sea water as they may form in non marine systems, but it would be good to confirm this especially for frazil ice. Typically 3 to 4 millimeters in diameter. These may form in both marine water and fresh water. They represent the first stages of sea ice growth; they merge under calm conditions to form thin sheets of ice on the surface (frazil ice), and consist of nearly pure fresh water. In fresh water, they form in supercooled water that is too turbulent to permit coagulation into sheet ice. This is most common in swiftly flowing streams. They may accumulate as anchor ice on submerged objects obstructing the water flow. needle ice frazil crystals new ice decreased size