Mineral-like biological tissue
Human Skin (Epidermis/Dermis)
Integumentary tissue (High content of hydroxyapatite in bones, though the surface is biological)
Hardness: 1-2 (Mohs scale); Color: Flesh-toned/Peach; Luster: Dull to oily; Crystal structure: Amorphous/Organic cellular grid; Cleavage: None; Specific gravity: Approx 1.05
- Hardness
- 1-2 (Mohs scale)
- Color
- Flesh-toned/Peach
- Luster
- Dull to oily
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Physical properties
Hardness: 1-2 (Mohs scale); Color: Flesh-toned/Peach; Luster: Dull to oily; Crystal structure: Amorphous/Organic cellular grid; Cleavage: None; Specific gravity: Approx 1.05
Formation & geological history
Biogenic formation through cellular mitosis; continuous regeneration over a lifetime (Holocene epoch to present); formed in terrestrial biological environments.
Uses & applications
Protective barrier, sensory organ, and thermoregulation; not typically used in industry or construction; historical use of leather in clothing/bookbinding.
Geological facts
The skin is the largest organ of the human body. Every minute, the body sheds about 30,000 to 40,000 dead skin cells.
Field identification & locations
Identify by presence of dermatoglyphics (fingerprints), hair follicles, and elasticity. Found globally across all terrestrial habitats. Not a specimen for mineral collection.
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