What makes an eggshell so fragile?

The primary factor contributing to the fragile nature of eggshells is their composition. Eggshells are primarily composed of calcium carbonate, a brittle mineral that is susceptible to cracking and breaking under pressure or impact. The arrangement of calcium carbonate crystals within the eggshell further contributes to its fragility. These crystals are not tightly packed, resulting in a porous structure with numerous air pockets. These air pockets create weak points in the eggshell, increasing its vulnerability to breakage.

Additionally, the thickness and curvature of the eggshell play a role in its fragility. Eggshells are relatively thin, making them more prone to bending and cracking. The curved shape of the eggshell also contributes to its vulnerability, as it creates a larger surface area for potential impact and stress.

Overall, the combination of the material composition (calcium carbonate), structural arrangement (porous with air pockets), and physical characteristics (thinness and curvature) make eggshells highly fragile and susceptible to breakage.