<figure class="wp-block-image">
 <img alt="salt" class="wp-image-151668 gcloudimg" data-attachment-id="151668" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"iPhone 7","caption":"","created_timestamp":"1558976314","copyright":"","focal_length":"3.99","iso":"50","shutter_speed":"0.066666666666667","title":"","orientation":"1"}' data-image-title="salt" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_151667/salt.jpg"/>
</figure>

 In this picture we can see the cubic structure of NaCl salt crystals. The smooth faces are visible as light passes through them, and the dark outlines show a cubic structure due to the face-centered cubic lattice structure of the Na+ and Cl- ions in the salt.


 I gathered this sample from a container of iodized cooking salt in a kitchen in Blacker house. It was obtained at 6:25pm on Monday, May 27.


 I obtained this sample and made it visible in the foldscope by: creating a significantly oversaturated NaCl solution in water, scooping several drops of the solution onto a glass slide with a spoon, and taping a coverslip on top. A flashlight was used as an additional light source for the foldscope.

<figure class="wp-block-image is-resized">
 <img alt="saltpile" class="wp-image-151669 gcloudimg" data-attachment-id="151669" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"iPhone X","caption":"","created_timestamp":"1558982574","copyright":"","focal_length":"4","iso":"25","shutter_speed":"0.033333333333333","title":"","orientation":"1"}' data-image-title="saltpile" height="512" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_151667/saltpile.jpg" width="384"/>
 <figcaption>
 The salt crystals were visible to the naked eye.
 </figcaption>
</figure>
<figure class="wp-block-image is-resized">
 <img alt="saltcan" class="wp-image-151670 gcloudimg" data-attachment-id="151670" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"iPhone X","caption":"","created_timestamp":"1558982562","copyright":"","focal_length":"4","iso":"40","shutter_speed":"0.041666666666667","title":"","orientation":"1"}' data-image-title="saltcan" height="512" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_151667/saltcan.jpg" width="384"/>
 <figcaption>
 Location of the salt.
 </figcaption>
</figure>

 #caltechbi1

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