The main arguments for this hypothesis are the relics of chondrules, the euhedral enstatites surrounded by meteoric iron and the occurrence of keilite.
22.
Meteoric iron can be distinguished from telluric iron by its microstructure and perhaps by its chemical composition also, since meteoritic iron contains more nickel and less carbon.
23.
Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron.
24.
It was also slowly degenerating as the power of magic dwindled in the face of an early flowering of iron-working, meteoric iron being the bane of magic.
25.
In nature, cobalt is frequently associated with nickel, and both are characteristic components of meteoric iron, though cobalt is much less abundant in iron meteorites than nickel.
26.
In 1921, the Russian Soviet government to fund an expedition to the Tunguska region, based on the prospect of meteoric iron that could be salvaged to aid Soviet industry.
27.
"' Iron meteorites "'are meteorites that consist overwhelmingly of an iron nickel alloy known as meteoric iron that usually consists of two mineral phases : kamacite and taenite.
28.
The silicate inclusions are composed of low-Ca pyroxene, high-Ca pyroxene, olivine, plagioclase, troilite, graphite, different phosphates, meteoric iron and traces of daubr�elite and chromite.
29.
He was the author of many scientific notes on minerals, meteorites and meteoric irons, and is credited with providing practical methods for separation of cobalt and nickel; iron and titanium; cerium and iron.
30.
By the Middle Bronze Age, increasing numbers of smelted iron objects ( distinguishable from meteoric iron by the lack of nickel in the product ) appeared in the Middle East, Southeast Asia, and South Asia.
