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Annette [7]
3 years ago
8

Please help me

Biology
1 answer:
Alenkinab [10]3 years ago
8 0
Ostrich eggshell is composed of 96% crystalline calcite and 4% organic material, mostly proteins. The thickness is made up of three different layers that vary in structure and thickness. The hardness of the shell is 3 on the Mohs scale. Pretty solid!
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