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Improving Mindat.orgBug entering mineral name
26th Oct 2016 13:31 UTCPascal Chollet Expert
I found a bug trying to enter a mineral name ( http://www.mindat.org/photo-180483.html )
As it is not analysed, i whised to enter "apatite group"
- Writing "apatite" in the field, "apatite group" does not display in the select list
- Writing "apatite group" in the field, the select list displays "Epidote supergroup" ! :-S
- Same thing while writing "apatite supergroup" in the field
Pascal
26th Oct 2016 13:54 UTCDavid Von Bargen Manager
The group contains mimetite and vandinite and other disparate minerals.
26th Oct 2016 15:02 UTCPascal Chollet Expert
And displaying Epidote while entering apatite remains a bug.
Pascal
26th Oct 2016 15:41 UTCDavid Von Bargen Manager
28th Oct 2016 21:15 UTCRalph S Bottrill 🌟 Manager
28th Oct 2016 22:13 UTCPascal Chollet Expert
Pascal
29th Oct 2016 14:58 UTCUwe Kolitsch Manager
30th Oct 2016 20:26 UTCRalph S Bottrill 🌟 Manager
31st Oct 2016 18:33 UTCUwe Kolitsch Manager
31st Oct 2016 20:23 UTCRalph S Bottrill 🌟 Manager
Otherwise if it resembles the fluorapatite you analysed but no other members of the apatite group or other minerals found there, isnt fluorapatite a reasonable name for it? Apatite group is very diverse and not very useful as a name for a specimen nless the chemistry is complex.
Also "apatite" is listed as a synonym of fluorapatite, chlorapatite and hydroxylapatite, not grammatically correct, it should be a subgroup really.
31st Oct 2016 20:32 UTCPascal Chollet Expert
Such samples are always questionnables... and until it is not "personnally" analysed you can only give a group name.
I'm slowly (but surely) renaming all my beudantite, corkite, plumbogummite, kintoreite, gorceixite, etc.... with the generic "Alunite supergroup" name, until it is analysed, or very significant (e.g. blue samples can be reasonnably believed to be plumbogummite).
"Also "apatite" is listed as a synonym of fluorapatite, chlorapatite and hydroxylapatite, not grammatically correct, it should be a subgroup really"
Indeed : but does not match the (still possible) mimetite-pyromorphite series
Pascal
31st Oct 2016 20:37 UTCRalph S Bottrill 🌟 Manager
31st Oct 2016 21:20 UTCPascal Chollet Expert
Apatite (+ fluorapatite) : 4 pictures http://www.mindat.org/gallery.php?loc=1669&min=29229
Mimetite : 26 pictures http://www.mindat.org/gallery.php?loc=1669&min=2714
Mimetite-pyromorphite series : 44 pictures http://www.mindat.org/gallery.php?loc=1669&min=32349
Pyromorphite : 11 pictures http://www.mindat.org/gallery.php?loc=1669&min=3320
Last three should be merged as Mimetite-pyromorphite series (In my opinion, and including my own pictures)
There are more than 30 lead bearing minerals (over 122 valid species) : http://www.mindat.org/loc-1669.html and clic on Pb in "filter mineral list"
Pascal
1st Nov 2016 16:48 UTCUwe Kolitsch Manager
1st Nov 2016 20:13 UTCRalph S Bottrill 🌟 Manager
17th Oct 2022 14:16 UTCPascal Chollet Expert
Hi everybody
Several years later, I finally performed a SEM-EDS analyse on the sample.
Analyse was performed on full sample, without picking anything, in Low-Vac mode.
Results are (% at.)
Pb = 6.99 - Ca = 5.63
P = 12.1 - As = 0
Cl = 5.35 - F = 3.06
This matches Uwe results, althought lead seems dominant on calcium (stoechiometry is not great). On BSE mode SEM image color is uniform. this doesn't seem to be layers or heterogenous composition.
The most probable seems to be Phosphohedyphane-Fluorphosphohedyphane solid solution
Pascal
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 27, 2024 02:47:35