Noir's Selected Oriented Meteorites
Here is a selection of Caillou Noir Oriented Meteorites.
A meteorite is said oriented
when it had an oriented flight across the Earth Atmosphere. Most meteorites
tumble during thier flight and present irregular shapes. Few meteorite have
a natural stable aerodynamic shape: they do not turn upside down ( tumble) and
always present the same side to penetrate the atmosphere. They burn on one side
while material deposits on the other side.
Oriented meteorites clearly display aerodynamic shape. It has a shield shape, with thin an extrados ( the front side, facing the air when flying) and an intrados ( the back side ). The extrados has a dome shape and is covered with thin fusion crust, while the intrados is covered with thick fusion crust. The leading edge between extrados and intrados displays a fusion crust rim. On bigger individuals, the extrados can be covered with regmaglypts. On smaller individuals, the extrados can be covered with radial fusion crust flow lines.
CN 02011 oriented 657 g , extrados
THIS METEORITE WAS STOLEN TO CAILLOU NOIR IN TUCSON 2005!
CN 02011 oriented 657 g , intrados
More to come.... always in Progress.
© Caillou Noir Michel FRANCO 2006