I am always open to trading sands with other collectors, and you can contact me via email: jmartingeology [at] gmail.com or through the contact form on my website. I am particularly interested in sand from unusual localities, algal/rhodolith sands, and oolitic sands.
Currently, I am searching for sand from these countries: Guyana, Bangladesh, Somalia, Lesotho, Eswatini, and Burundi.
I also take donations, and you will receive a digital image of the sand you have sent if you would like. Please contact me for my mailing address.
Other resources coming soon:
How to start collecting sand
Sand collecting clubs and organizations
How to display or store your collection
How to safely ship sand (domestic and internationally)
Creating a spreadsheet to keep collection information organized