Feldspar Twinning: @ least 7 types of twinning are exhibited by feldsparsFeldspar frequently exhibits phase changes in what may appear externallyas a single crystal but actually represents two or more individuals.
Picket fences serve two purposes: They keep unwanted traffic out, but they also add a design element to houses and yards. Generally, picket fences are smaller than standard fences, standing no more than 4 feet high. Picket fence boards are generally 3 to 3.5 inches wide with the shapes of the tops varying by preference.Fences, however, can also be as wide as 5.5 inches or as small as 1.5 inches.The four main types of picket fence styles are the flat top, French Gothic, Gothic and dog ear, and the most popular colors for picket fences are either natural or white.icket fences serve two purposes: They keep unwanted traffic out, but they also add a design element to houses and yards. Generally, picket fences are smaller than standard fences, standing no more than 4 feet high. Picket fence boards are generally 3 to 3.5 inches wide with the shapes of the tops varying by preference.
Wood panel fencing â sometimes called stockade fencing â improves privacy and security and is a good choice for setting boundaries for children and pets. Individual components â boards and rails â and prebuilt panels come in sections 4 to 6 feet tall and 6 or 8 feet long. There are two basic types of panels: 1  The boards on a solid panel fence butt against each other. 2  Shadowbox panels, right, use alternating boards on each side of the fence rail to give the fence the same look on both sides, allow air circulation and provide partial views.