Orange Calcite (* not for aquariums due to potential to change PH balance of water) Medium Roughs: 2 to 3″ Sold in Mixed size – 1lb Lots Small Roughs: 1/2 to 1 Sold in Mixed size – 1lb Lots https://aquariumstone.com/product/orange-calcite/
Sodalite (2-4 Inch) Gravel Size: approx. 1/2″ Sold in Mixed size – 1lb Lots Small Roughs: 1″ to 3″ Sold in Mixed size – 1lb Lots https://aquariumstone.com/product/sodalite/
Crystal Quartz Pebbles: 1/8″ – 1/4″ Sold in Mixed size – 1lb Lots Polished Gravel: 1/2″ – 2″ Sold in Mixed size – 1lb Lots Small Roughs: 1″ – 3″ Sold in Mixed size – 5lb Lots https://aquariumstone.com/product/crystal-quartz/