Michael Anenburg
@manenbu.bsky.social
1K followers 590 following 340 posts
I make fake rocks & minerals at high pressures & temperatures. Admirer of carbonatites, rare earths, and geological miscellanies. מיכאל.🐪✡️
Posts Media Videos Starter Packs
manenbu.bsky.social
Look me up by name, probably easier
manenbu.bsky.social
Unsubscribe from any emails, problem solved.

My feed has very little AI and lots of geology.
manenbu.bsky.social
We’re all on LinkedIn now
manenbu.bsky.social
Some very unremarkable minerals there, I wonder how did they end up on the list
manenbu.bsky.social
Sydney last week, coming back to Canberra from Brisbane
manenbu.bsky.social
Maybe it is legit?

I saw those new Proclamation coins now in our local AusPost… almost but not quite!
manenbu.bsky.social
Thortveitite for me, thank you very much #MinCup25
mineralcup.bsky.social
Was it quietly grinding on your soul that the #MinCup25 bracket was off-center and oh-so-slightly asymmetrical? We fixed it!

No changes to the matchups, it’s just a lil bit more polished.
Alt text:  A sports-style elimination bracket of 32 minerals labeled "Mineral Cup 2025". Text below reads, "Daily voting takes place on www.MineralCup.org in September. Campaign on your favorite social media using #MinCup25."

The starting matches are, in chronological order: chrysotile versus pectolite, stibnite versus okenite, jeremejevite versus haüyne, calcite versus perovskite, silver versus baryte, carpathite versus leucite, sanidine versus hematite, pollucite versus tugtupite, kosmochlor versus azurite, dioptase versus wavellite, titanite versus thortveitite, zunyite versus molybdenite, topaz versus kyanite, cuprosklodowskite versus ikaite, taenite versus nontronite, and paddlewheelite versus mannardite.
manenbu.bsky.social
You’d think that “one stop stamp shop” would know its value…
manenbu.bsky.social
Fun fact, hydration of calcium oxide and calcium silicates to portlandites involves a very large volume expansion at great force, causing all sorts of mayhem in both nature and in my own experiments
Reposted by Michael Anenburg
mineralsocamerica.bsky.social
Mineral Monday: Oxygen fugacity buffer calculator by Michael Anenburg
Michael Anenburg has developed a graphical oxygen fugacity buffer calculator, available at
fo2.rses.anu.edu.au/fo2app/

#MSACommunications #MineralMonday #mineralogy #oxygenfugacity
manenbu.bsky.social
How many do you have?
manenbu.bsky.social
You mean courrectised
manenbu.bsky.social
It’s antiskarnisation
manenbu.bsky.social
Hope you enjoy it :)

May I interest you in two recent apatite related papers?
doi.org/10.1021/acs....
doi.org/10.1039/D5TB...
Published in chemistry journals so you might have missed them, but very relevant for geoscience.
manenbu.bsky.social
Camera doesn’t do justice
manenbu.bsky.social
I should take a video of one of them, aegirine reflects light in a very cool way
manenbu.bsky.social
Not including another year in a different journal (to be fair, mostly my fault for being slow, NComms were just fine)
manenbu.bsky.social
Thanks, and it took a while for us to convince the world that it happens. Look at the time gap between submission and acceptance 😅
manenbu.bsky.social
In carbonatites, alkalis are fluxes that keep melting points low. We discovered that upon reaction with surroundings silicates ("antiskarns"), alkalis are extracted to silicate minerals, solidifying the residual carbonatite magma into crystalline rock.