Since silicon is a common element in the crust, for the #printersolstice2425 prompt silicon I’m making a portrait of trailblazing geologist Florence Bascom (1862-1945), complete with geological cross sections and thin sections from her publications.
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Edge Of Mars’ Great Dichotomy Eroded Back By Hundreds Of Kilometres
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https://arstechnica.com/science/2025/01/field-of-mounds-on-mars-may-be-sign-of-erosion-at-the-edge-of-an-ocean/ <-- shared technical article
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http://dx.doi.org/10.1038/s41561-024-01634-8 <-- shared paper
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#GIS #spatial #mapping #planet #Mars #remotesensing #imagery #landsurface #geology #topography #astrogeology #elevation #morphology #martian #geography #marsdichotomy #plateau #lowlands #model #3dmodel #basin #highlands #shoreline #ocean #crust #structuralgeology #chemostratigraphy #morphostratigraphy #geomorphometry #geomorphology #water #hydrology #CaSSIS #HiRISE #stratigraphy #strata #MOLA #laser #LiDAR #MawrthVallis #crater #mound #profile #crosssection #geochemistry #mineralogy #CRISM #CTX #HRSC #DTM #erosion #weathering #spatialanalysis #spatiotemporal

Working on my next #printerSolstice print for the prompt oxygen- another woman who was there and involved in the chemical revolution and development of the idea that burning might be due to an element that got named oxygen rather than a substance possessed by combustible things called phlogiston.

Chemist, mineralogist, meteorologist and scientific translator Claudine Picardet…

How did I not know this??? Most ordinary porcelain is basically mullite and glass. Mullite - first found in nature in samples from Mull, and named by Norman Bowen, and co-workers, in 1924. Although rare in nature, it is a ubiquitous material in industrial and other ceramics. #Mull #Mullite #Mineralogy #Geology #Porcelain #ceramics

PS pdf of Bowen et al's paper available on the superb rruff website: https://rruff.info/uploads/JWAS14_183.pdf

Job - Alert

Full Professorship W3 - Design and building with mineral materials

Deadline: 2024-11-10

Location: Germany, Darmstadt, Hessen

APPLY: https://www.academiceurope.com/job/?id=5535

#MinCup24 rhodochrosite vs calcite

Got to be calcite: a great mineral - it can grow igneously, sedimentarily, metamorphically, or biologically; it's a wonderful recorder of processes and time , it has unmatched diversity and beauty of crystal forms AND it can do pink even better than rhodochrosite!

You can browse endless pages of calcite crystal forms here:

https://archive.org/details/atlasderkrystalltaf02gold/page/60/mode/2up

https://www.mindat.org/photo-272306.html

#Pinktastic #Calcite #Geology #Mineralogy #Crystals @MineralCup

#Quartz is piezoelectric due to its symmetry (its lack of a center of inversion): if you squeeze quartz it creates an electrical potential across the sides (likkewise an applied voltage distorts the crystal). This can be used to create a resonator that vibrates at a set frequency. Here's a Soviet-era quartz crystal compared to a modern equivalent (blue arrow).

Before digital radios, we used to swap out crystals to change frequencies in field radios.

Well, I finally managed to make an account here. I'm a geologist, mineral lover, and curator of mineralogy at the Natural History Museum in London. You might know me as @NadWGab over on Twitter (https://twitter.com/NadWGab) which is my main account for now.