Natural History & Ecology: Mature striped dolphins may range in length from 180 cm to 256 cm and 110 to 160 kg in weight. Average length at sexual maturity has been found to be 195 to 220 cm for both males and females of the species at an age of 9 to 10 years old.
Bog iron is a type of iron ore composed of mostly mineral goethite and other iron-bearing minerals with impurities like clay or plant debris. Bog iron used to be a very important ore of iron before better alternatives like banded iron formations were discovered.
Cast iron and cast steel are two types of iron-carbon alloys. The main difference between these alloys is the carbon content in the composition. Cast iron is rich in carbon more than cast steel. Cast iron contains over 2% of carbon and cast steel contains less than 2% of carbon in weight. The purpose of this casting with carbon is to alter the properties of iron for advanced applications. Because, iron itself alone is a soft metal and it is not ideal for construction materials.