Galena vs Stibnite
| Property | Galena | Stibnite |
|---|---|---|
| 화학식 | PbS | Sb2S3 |
| 결정계 | Cubic (Isometric) | N/A |
| 광물 분류 | 02 Sulfides and Sulfosalts | N/A |
| 모스 경도 | 2.5-2.8 | N/A |
| 색상 | Lead-gray | N/A |
| 광택 | Metallic | N/A |
| 조흔색 | Lead-gray | N/A |
| 투명도 | Opaque | N/A |
| 벽개 | Perfect cubic {001} | N/A |
| 단구 | Subconchoidal | N/A |
Key Differences
- ◆ Galena is cubic (PbS) with perfect cubic cleavage; stibnite is orthorhombic (Sb2S3) with perfect prismatic cleavage.
- ◆ Both have lead-gray color and metallic luster, but stibnite forms long striated blade-like crystals.
- ◆ Galena is the principal lead ore; stibnite is the principal antimony ore.
- ◆ Stibnite has a lower specific gravity (4.5–4.6) than galena (7.4–7.6).
- ◆ Stibnite can be softened in a match flame; galena cannot.