En un mensaje con fecha 01/05/2005 12:13:08 AM Mexico Standard Time,
MexicoDoug escribe:
It is much more believable to me that we start out with the elements
[reactants to form FeS] and then they react at the high temperatures in the
foundry
planetesimal core. Thus the troilite very
Bernhard Rems wrote:
The mineral troilite is actually stoichiometric pyrrhotite. Pyrrhotite
ranges in composition from Fe7S8 through to FeS. Most terrestrial pyrrhotite
lack some iron. The troilite end-member (FeS) occurs mainly in meteorites
and lunar samples
I fully agree. Indeed, after a rapid
Zelimer asked:
Indeed, after a rapid checking through some textbooks on
hand, I did not find any terrestrial occurrence for troilite.
Does anyone know for some ?
I believe the type locality of terrestrial troilite is located in Del
Norte California (northwesternmost California). According to
Zelimir wrote
I fully agree. Indeed, after a rapid checking through some textbooks on
hand, I did not find any terrestrial occurrence for troilite.
Does anyone know for some ?
Hi Zelmir here is what I found:
In Handbook of Mineralogy 1990 by Anthony et. al. p. 538
Occurrence: Found in
Hello Bernd, Frank, Mike, List,
Many thanks for the info about terrestrial troilite. Here (at work) I only
had a small reference textbook on mineralogy. Home I have some 2000+
mineral books and (almost all) journals, among which those books you are
mentioning. It may also well happen that I
What I have found so far:
A non-magnetic form of iron sulfide (FeS) found in a variety of meteorites.
Some troilite is thought to have formed at a 988oC eutectic point in Fe/S
melts, where native Fe and troilite form simultaneously. Some troilite is
devoid of native Fe, so this must have formed
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