[meteorite-list] Fwd: Lawrencite and Akaganeite, w/data card

[Mr EMan]

For the "terrestrial phase", minerals-in-meteorites
collector here are links to lawrencite and
akaganeite. There is even a printable collection card
at the bottom of each description.(as are taenite and
kamacite under their descriptions)
Akaganeite:
<http://webmineral.com/data/Akaganeite.shtml>
Lawrencite:
<http://webmineral.com/data/Lawrencite.shtml>

 Akaganeite is a chlorinated iron hydrite which is the
alteration product [Fe+++(O,OH,Cl)] derived from the
former in the presence of moisture. 
 
Those that claim to literally watch their Campos rust
away into flakes aren't too far off.  The Lawrencite
Hydrochloric duo moves into pores and cracks  where
forming akaganeite expands and flakes away rotten
layers.
 
More Discussion on lawrencite and akaganeite

<http://rruff.geo.arizona.edu/doclib/hom/lawrencite.pdf>
 
Back to syphoning off my monthly brew of akaganeite
tea!
Elton