Tufa | Aquarium Safe Limestone Formation | Nevada Ancient Sea Floor vert flattened rostrums (beak-like snouts) resembling

flattened rostrums (beak-like snouts) resembling a modern duck’s bill

and maybe even larger than the largest extant cat

Aquila chrysaetos

Knightia sp

Gorgeous Argentinian Blue Calcite Palm Stone with beautiful coloring

Tufa | Aquarium Safe Limestone Formation | Nevada Ancient Sea Floor vert flattened rostrums (beak-like snouts) resemblingNevada tufa is a natural rock that formed 10,000 to 20,000 years ago when half of Nevada was covered by an inland sea called Lahontan. The tufa formed on the sea floor when natural mineral springs came into contact with saline sea water and the dissolved minerals precipitated out of solution. The minerals, calcium carbonate and silica, fell to the sea floor and solidified in horizontal layers in a process similar to that which forms stalactites in