Zoe Organic Ethiopian Coffee House
Natural Minerals(including Copper And Gold)
| Specification | Copper (Natural/Ore) | Gold (Natural/Ore) |
| Form | Ore, concentrate, cathode, ingot | Ore, nuggets, dust, bullion |
| Color | Reddish-brown (metallic) | Yellow-gold (metallic) |
| Purity | 85–99.99% (depending on form) | 90–99.99% (bullion) |
| Hardness | 2.5–3.0 (Mohs scale) | 2.5–3.0 (Mohs scale) |
| Density | ~8.96 g/cm³ | ~19.32 g/cm³ |
| Melting Point | 1,084°C | 1,064°C |
| Conductivity | Excellent (electrical & thermal) | Excellent (mostly electrical) |
| Luster | Metallic | Metallic |
| Packaging | Bags (ore), bundles (cathodes) | Secure boxes (bullion), bags (ore) |
| Storage | Dry, secure, well-ventilated areas | High-security storage |
| Foreign Matter | Free from excessive dirt or debris | Free from impurities when refined |
