Organic (Anthropogenic)
Paper (Cellulose)
Cellulose (C6H10O5)n
Hardness: <1 (Mohs); Color: Off-white/Cream; Luster: Matte; Crystal structure: Amorphous/Fibrous; Cleavage: None (tears); Specific gravity: ~0.7–1.2
- Hardness
- <1 (Mohs)
- Color
- Off-white/Cream
- Luster
- Matte
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Physical properties
Hardness: <1 (Mohs); Color: Off-white/Cream; Luster: Matte; Crystal structure: Amorphous/Fibrous; Cleavage: None (tears); Specific gravity: ~0.7–1.2
Formation & geological history
Formed through the mechanical and chemical processing of organic plant fibers (wood pulp); this specific specimen dates to June 1972.
Uses & applications
Used primarily for documentation, communication, and historical record-keeping. Highly valued in administrative and archival settings.
Geological facts
This document represents a graduation certificate from the Naval Special Warfare Center for BUD/S training, which is one of the most grueling military training programs in the world.
Field identification & locations
Identified by its cream color, 'United States Navy' letterhead, and official seals; found in personal military archives. Collectors look for archival ink and historical authenticity.
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