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#78 granite, also known as #78 stone, small crushed granite, clean granite chips, or fine granite aggregate, is a clean, angular stone commonly used for drainage, concrete, surface finishing, and landscaping. It typically consists of small, consistently graded granite particles around 3/8 inch, although exact sizing may vary by quarry and regional specification.
Because #78 granite contains little to no stone dust or fines, open spaces remain between the particles, allowing water to move efficiently through the aggregate. Its fractured edges help the stone settle securely and resist movement more effectively than rounded gravel, creating a neat, stable surface with dependable drainage.
Compared with #789 granite, #78 granite is the cleaner and more uniformly sized option. #78 granite is preferred where drainage, consistent sizing, and a refined stone finish are important. #789 granite contains stone dust and fines that help it compact into a denser, firmer surface, making it better suited for compacted pathways, driveway surfacing, and leveling applications.
Granite’s natural hardness and resistance to wear make #78 stone a durable choice for residential, commercial, and construction projects that require long-term performance and a clean finished appearance.
Common Applications of #78 Granite
- Concrete and asphalt aggregate mixes
- Drainage systems and trench backfill
- Pipe bedding and utility installations
- Driveway and parking-area top dressing
- Walkways and garden pathways
- Decorative landscape beds and borders
- Surface finishing over compacted aggregate base
- Hardscape and construction drainage layers
