## Common ground
Both options refer to border stones and milestones used for marking boundaries or distances, regardless of material.
## Options at a glance
**6802.2X,6802.9X – Made of monumental or building stone**
- **Defining trait:** Constructed from natural stone like granite, marble, or sandstone, typically quarried and shaped for durability.
- **Typical examples:** Granite boundary markers, carved limestone milestones, dressed marble survey posts.
- **Best fit when:** The product is made from naturally occurring rock, often with visible grain or texture, and used in permanent outdoor installations.
**6810.99 – Made of cement concrete or artificial stone**
- **Defining trait:** Manufactured using cement, aggregates, and sometimes synthetic resins; may mimic natural stone appearance but is not quarried.
- **Typical examples:** Pre-cast concrete boundary posts, fiber-reinforced polymer markers, molded concrete milestones.
- **Best fit when:** The product is mass-produced, has a uniform surface, or shows signs of casting (e.g., mold lines, smooth finish).
## Key differences
| Feature | 6802.2X,6802.9X (Natural Stone) | 6810.99 (Concrete/Artificial Stone) |
|-----------------------|----------------------------------|--------------------------------------|
| Material origin | Natural quarry stone | Man-made, cement-based |
| Surface texture | Varied, natural grain | Smooth, uniform, or molded |
| Production method | Shaping and carving | Casting or molding |
## How to choose
- Is the material visibly natural with rock-like texture or grain? → 6802.2X,6802.9X
- Does it look cast, smooth, or have mold lines? → 6810.99
## Overlaps & pitfalls
A product may resemble natural stone but be made of concrete (e.g., faux granite), leading to confusion. The key is material origin: if quarried and shaped from rock, use 6802.2X,6802.9X; if manufactured from cement or synthetic materials, use 6810.99. No priority rule is implied—choose based on the product’s primary material composition