About Le Creuset: Since 1925, Le Creuset cast iron has been recognized for its strength and durability. Cast individually in sand molds, then hand-inspected by French artisans, each piece represents a rich heritage and continues a tradition of lasting, authentic design.
Lodge Pre-Seasoned Cast-Iron Skillet Pre-seasoned skillet is ready-to-use right out of the box The black patina given to the cookware by the factory seasoning process is, in fact, vegetable oil that has been baked into a piece of cookware that has emerged from an individual sand mold.
The Gateway to Up-To-Date Information on Integrated 'Whole Building' Design Techniques and Technologies. The goal of 'Whole Building' Design is to create a successful high-performance building by applying an integrated design and team approach to the project during the planning and programming phases.
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. It is defined by size, being finer than gravel and coarser than silt.Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass.
The use of Iron (Fe) Iron is a very useful and powerful colouring agent even though it can be an undesirable impurity in making glass. Iron when used in its highest state of oxidation could in combination with barium oxide (BaO) give a reddish-blue glass, but these would have melted under high oxygen pressures and cannot be produced in practice.