Category Nuances for egg_shell:

• organic,
• home,
• dry,
• colored,
• natural,
• base,
• hard,
• inorganic,
• waterproof,
• porous,
• unique,
• heavy,
• extraneous,
• smaller,
• heavier,
• biodegradable,
• protective,
• solid,
• convex,

Simple Categories for egg_shell:

• item,
• structure,
• material,
• particle,
• surface,
• object,
• solid,
• medium,
• layer,
• waste,