Discussion
Widmanstatten structure is associated with :
Answer: D
The Widmanstatten structure is associated with siderites, the iron meteorites.
When an etched surface of an iron meteorite is examined, it shows a criss-cross pattern of intergrown plates of kamacite and taenite (two iron-nickel alloys). The pattern forms by extremely slow cooling, of a few degrees per million years, inside the cores of asteroids, and it is the classic proof that a specimen is an iron meteorite.
Aerolites are stony meteorites and siderolites are stony-irons, which lack the full pattern, and tektites are natural glasses produced by impacts, not meteorites at all.
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