Bob McMeekingRE: https://mastodon.social/@luddchem/113750244186317287
Well it's 2026 and still staggering on in CrystalWorks
@MineralCup
Round 1 Match 7
Check out Sanidine(4a) and Hematite(4b): https://cds.dl.ac.uk/cgi-bin/rfm/crystalworks_trawl_new?8850_3368_5146
But only Sanidine (that and ten other members of the Feldspar group!) is in https://cds.dl.ac.uk/cgi-bin/cw_page/examples_rocks.html
See entry for 28th February in https://cds.dl.ac.uk/cgi-bin/cw_page/examples_365.html
A nice article on Fe2O3 by Helen Brand - "Hematite: a structure determined by Linus Pauling". Pauling determined the structure in 1925.
#MinCup25 #Hematite #Sanidine #365Minerals #Crystallography365
@MineralCup
I used to put up a page to follow the Mineral Cup with links to the crystal structures and details in #Mindat. But I have been reined in recently
https://cds.dl.ac.uk/cgi-bin/cw_page/examples_mincup23.html
You can see many of this years entries via the CrystalWorks link to the #365Minerals collection.
https://cds.dl.ac.uk/cgi-bin/cw_page/examples_rocks.html
I have decided to kick against the pricks and cobbled together a new page with reduced functionality
https://cds.dl.ac.uk/cgi-bin/rfm/crystalworks_trawl_new?8850_3368_5146
Entries not in #365Minerals are flagged with "X"
For those who have noticed problems accessing Mindat information via the #365Minerals CrystalWorks pages here is a message from their Facebook page about an hour ago
Hello everyone! As you might have noticed mindat.org is down at the moment. A database problem has required all three servers to have their databases resynced and this is taking quite a while. It still has quite a few hours left to go so please be patient.
The #365Minerals entry for today (3rd August) is Millerite ( β-NiS)
🔗 https://cds.dl.ac.uk/cgi-bin/cw_page/examples_rocks.html
Actually the α-NiS dimorph is also included in the CrystalWorks list. But this form is in fact the rare, recently identified mineral Crowningshieldite.
The α and β form are also given as the 20th July entry in the #Crystallography365 collection "Nickel sulfide: a smashing crystal structure"
🔗 https://cds.dl.ac.uk/cgi-bin/cw_page/examples_365.html
Both are worth checking out
The #365Minerals entry for today (2nd August) is Vivianite, a particular favorite. Amongst other things it is found on corpses in iron coffins and also tends to block the valves in sewage treatment plants.
The #365Minerals collect, in particular, is worth checking out
cds_daresbury (@[email protected])
As it is now the first day of 2025 it is a good time to review the full 365Minerals collection produced by Nadine Gabriel and implemented by CrystalWorks site at Daresbury https://cds.dl.ac.uk/cgi-bin/cw_page/examples_rocks.html
If eligible you can register via the CrystalWorks homepage. If you are already a registered user, you may find you have to reset your password if you have not done so recently.
Anybody is free to access the Crystallographic Open Database.
There are also a number of other open crystal structure based pages. These include the #365Minerals and #Crystallography365 collections.
🔗the CrystalWorks homepage: https://cds.dl.ac.uk/
🔗open access CrystalWorks pages: https://cds.dl.ac.uk/cgi-bin/cw_page/link_to_cworks.html
The #365Minerals entry for 21st June was Franklinite. The original collection compiled by Nadine Gabriel back in the acceptable days of Twitter has been taken down.
The entry for 18th July is also of interest - a Cu triazole system
But you can still get the links to Mindat and expore the structures interactively using JSmol via the CrystalWorks interface
Track down all the structures via the link:
The #365Minerals entry for today (15th May) is Mullite. A structure with lots of disorder (positional and substitutional). To check out details go to CrystalWorks. There is also a link to Mullite in #Mindat.
https://cds.dl.ac.uk/cgi-bin/cw_page/examples_rocks.html
All the #365Minerals entries are taken from the Entry a Day series posted on Twitter by Nadine Gabriel. Nadine (for very understandable reasons) has virtually abandoned that platform, and sadly she has deleted the #365Minerals series.
