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Your cart is empty. Raw Gray Limestone Specimen
Set of 6 Samples, 1"
The massive, gray variety of limestone is often found deposited in marine environments. It is made up of organic material, primarily calcium carbonate. Excellent for demonstrating the tendency of calcium carbonate to effervesce in acid, and is perfect for identification and classification exercises.
While each specimen will vary slightly in shape, size and color, it will measure approximately 1" in length. Each is individually packaged, labeled & barcoded for easy identification and storage.
Selected & Processed by a Geologist.
Each and every specimen is selected and hand processed by an actual geologist, ensuring that each sample exhibits defining features. Rocks and minerals are sourced from a variety of locations around the world and are processed by hand in Victor, NY.
Technical Support
Always feel free to reach out to our team of scientists and geologists for additional information, or to assist you with any questions regarding our rock and mineral samples.
Maricel Diaz
Reviewed in the United States on February 8, 2025
Rather costly for such simple small raw rock
jennifer
Reviewed in the United States on January 8, 2025
Wish I had paid attention to size….this was basically a pebble
Mark Harbor
Reviewed in the United States on October 28, 2024
Returned. Way overpriced for Rocks... C'mon
Perpetual_Panic.
Reviewed in the United States on June 9, 2023
I would give it a 5 but they're very small for how much they are. I've been keeping freshwater shrimp and snails for 10 years now. Snails and shrimp NEED calcium and the best way to give that to them long term is limestone. Sadly, I live in an area where I cant easily find limestone. If you have limestone in your driveway or in your yard, I recommend rinsing that off and using that instead.
Malinda R.
Reviewed in the United States on March 28, 2022
Small but looks nice in my 10 gallon tank. Kind of expensive for the size. Baught it to try to bring up my ph in the tank. To soon to tell if it worked.
never enough books
Reviewed in the United States on December 18, 2022
For use in the classroom my students struggled to compare basalt and this limestone because it was so dark. It was only density that helped them distinguish between the two. Pieces are about 1" each.
Brandt Schwarz
Reviewed in the United States on November 14, 2022
This product arrived early and was exactly as described.
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