![Close up chalk is so round... Close up kosher salt just like a pyramid | Chalk, Things under a microscope, Natural philosophy Close up chalk is so round... Close up kosher salt just like a pyramid | Chalk, Things under a microscope, Natural philosophy](https://i.pinimg.com/originals/70/fa/9c/70fa9c5504250ef9b670cb2f099b7116.jpg)
Close up chalk is so round... Close up kosher salt just like a pyramid | Chalk, Things under a microscope, Natural philosophy
![microscopic images. on X: "some of the calcareous nanofossils that make up chalk: emiliania huxleyi and gephyrocapsa oceanica magnified 9,000x under the scanning electron microscope https://t.co/9cfiS2NAB1" / X microscopic images. on X: "some of the calcareous nanofossils that make up chalk: emiliania huxleyi and gephyrocapsa oceanica magnified 9,000x under the scanning electron microscope https://t.co/9cfiS2NAB1" / X](https://pbs.twimg.com/media/FDiBZlnWEAUFb9M.jpg)
microscopic images. on X: "some of the calcareous nanofossils that make up chalk: emiliania huxleyi and gephyrocapsa oceanica magnified 9,000x under the scanning electron microscope https://t.co/9cfiS2NAB1" / X
![Ferris Jabr on X: "If you put chalk under a powerful microscope—white cliffs of Dover type chalk, not the modern blackboard variety—you will see something like this Because it's not just a Ferris Jabr on X: "If you put chalk under a powerful microscope—white cliffs of Dover type chalk, not the modern blackboard variety—you will see something like this Because it's not just a](https://pbs.twimg.com/media/DjDFVOTU4AER64w.jpg)
Ferris Jabr on X: "If you put chalk under a powerful microscope—white cliffs of Dover type chalk, not the modern blackboard variety—you will see something like this Because it's not just a
![The Echinoblog: The Ocean's Holiday Tree Ornaments! Stunning Scanning Electron Microscope Pictures of PLANKTON! The Echinoblog: The Ocean's Holiday Tree Ornaments! Stunning Scanning Electron Microscope Pictures of PLANKTON!](http://farm8.staticflickr.com/7057/6908938729_5dbdaf149c_o.jpg)
The Echinoblog: The Ocean's Holiday Tree Ornaments! Stunning Scanning Electron Microscope Pictures of PLANKTON!
ScienceAlert on Instagram: "Can you guess what this is under a microscope? It's chalk! Natural chalk, the stuff from cliffs, is made up of many, many ancient husks of ocean dwelling plankton!
![A microscopic view of French Meudon chalk, part of the chalk downland of Northern Europe made from was ooze accumulating at the bottom of a great sea. Chalk was one of the A microscopic view of French Meudon chalk, part of the chalk downland of Northern Europe made from was ooze accumulating at the bottom of a great sea. Chalk was one of the](https://c8.alamy.com/comp/2ABN9M1/a-microscopic-view-of-french-meudon-chalk-part-of-the-chalk-downland-of-northern-europe-made-from-was-ooze-accumulating-at-the-bottom-of-a-great-sea-chalk-was-one-of-the-earliest-rocks-made-up-of-microscopic-particles-to-be-studied-under-the-microscope-when-it-was-found-to-be-composed-almost-entirely-of-coccoliths-their-shells-were-made-of-calcite-extracted-from-the-rich-seawater-as-they-died-a-substantial-layer-gradually-built-up-over-millions-of-years-and-through-the-weight-of-overlying-sediments-eventually-became-consolidated-into-rock-2ABN9M1.jpg)
A microscopic view of French Meudon chalk, part of the chalk downland of Northern Europe made from was ooze accumulating at the bottom of a great sea. Chalk was one of the
![Coccolithophore cells covered with calcium carbonate (chalk) scales. Progress in understanding the unique physiology of these globally important organisms will help us to understand how they may respond to changing ocean chemistry. Coccolithophore cells covered with calcium carbonate (chalk) scales. Progress in understanding the unique physiology of these globally important organisms will help us to understand how they may respond to changing ocean chemistry.](https://s3-eu-west-1.amazonaws.com/ppreviews-plos-725668748/1549564/preview.jpg)
Coccolithophore cells covered with calcium carbonate (chalk) scales. Progress in understanding the unique physiology of these globally important organisms will help us to understand how they may respond to changing ocean chemistry.
![Molecular Expressions Microscopy Primer: Specialized Microscopy Techniques - Polarized Light Microscopy Gallery - Chalk Molecular Expressions Microscopy Primer: Specialized Microscopy Techniques - Polarized Light Microscopy Gallery - Chalk](https://micro.magnet.fsu.edu/primer/techniques/polarized/gallery/images/chalksmall.jpg)
Molecular Expressions Microscopy Primer: Specialized Microscopy Techniques - Polarized Light Microscopy Gallery - Chalk
![Shower Thoughts on X: "Get a tiny speck of chalk (Calcium Carbonate), put it in an electron microscope, and this is what you'll see. http://t.co/I4V2ALMVnc" / X Shower Thoughts on X: "Get a tiny speck of chalk (Calcium Carbonate), put it in an electron microscope, and this is what you'll see. http://t.co/I4V2ALMVnc" / X](https://pbs.twimg.com/media/BUh6MD_CcAEhOzv.jpg)
Shower Thoughts on X: "Get a tiny speck of chalk (Calcium Carbonate), put it in an electron microscope, and this is what you'll see. http://t.co/I4V2ALMVnc" / X
![Chalk under a microscope......if you ever wonder why i like using chalks to make pigments just look! Chalk under a microscope......if you ever wonder why i like using chalks to make pigments just look!](http://www.hunterdelves.com/uploads/4/5/8/0/4580351/natural-chalk-under-microscope_orig.jpg)