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Improving Mindat.orgBalangeroite cell parameters typo
1st Feb 2015 19:30 UTCFrank Craig
I did a quick search on mindat yesterday to confirm the cell parameters I was using for balangeroite and was taken aback when I saw this (did not match what I had):
a=c=19.4; b=9.65
www.mindat.org
Originally, I used cell parameters from webmineral and later found the article below. I am hoping this is just a typo (or does somebody know something different?) and could be fixed by someone.
a=b=19.40; c=9.65
Electron-diffraction and electron-microscopy study of balangeroite and gageite: Crystal structures, polytypism, and fiber texture
American Mineralogist, Volume 72, pages 382-391, 1987
a=b=19.40; c=9.65
www.webmineral.com
Thanks
Frank
2nd Feb 2015 09:26 UTCMarco E. Ciriotti Manager
mon P2/n 19.179 9.601 19.218 90.52 2
Reference:
Bonaccorsi E., Ferraris G., Merlino S. (2012): Crystal structure of 2M and 1A polytypes of balangeroite, Z. Kristallogr., 227, 460–467.
2nd Feb 2015 11:39 UTCUwe Kolitsch Manager
4th Feb 2015 22:34 UTCFrank Craig
(third try - hope this makes it this time :-S)
Regards
Frank
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