Longitudinal Waves. In a longitudinal wave, the motion of the medium is parallel to the direction of the wave. This means that the particles move left and right which in turn makes the other particles start to oscillate. Sound waves are longitudinal waves.
The name âZimbabweâ is an anglicized form of an African word meaning âstone housesâ, for the ruins of the Great Zimbabwe are comprised of several stone walls, monuments, and buildings built mainly of granite. The structures were created using a method called dry stonewalling, which requires a high level of masonry expertise.
Chiastolite Meaning. The meaning of its name comes from the Greek word chiastos meaning cruciform or crosswise. This crystal also has the common name of Cross Stone. The stone Andalusite is the same stone in another form, that does not have a visible cross within it. These stones are commonly brown with a black cross in the center, and are found in a number of countries, including Australia, Spain, Sri Lanka, China, France, Chile, Brazil, Russia, Canada and the USA.