Calcium carbonate (CaCO 3) is a natural product found in many settings ... CaCO 3 began to appear in the chemical literature in 1878, on topics ranging from the essential oil of sage to nitrification ...

Students will make a 2-D model of a salt crystal ... How do you know? Because calcium carbonate does not dissolve in water, students should realize that not all ionic substances dissolve in water.

This is a large accumulation of calcium carbonate and stalagmites, Yok Balum Cave, Belize. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!

Figure 1: As thermal water at 79.2°C reaches the surface, white calcium carbonate precipitates, forming a base for the proliferating red and green layered biofilms—woven bacterial mats ...

That model is then used to create a silicone mold, which is subsequently filled with an "eco-friendly and sustainable" calcium carbonate ink. Once that ink cures in response to exposure to light ...