** You will receive the exact specimen order by NUMBER**
Scientific Names:
Chalcopyrite: CuFeS₂ (Copper Iron Sulfide)
Calcite: CaCO₃ (Calcium Carbonate)
Mineral Groups:
Chalcopyrite → Sulfide mineral
Calcite → Carbonate mineral
Crystal Systems:
Chalcopyrite → Tetragonal
Calcite → Trigonal (Rhombohedral)
Mohs Hardness:
Chalcopyrite: 3.5–4
Calcite: 3
Specific Gravity:
Chalcopyrite: ~4.1–4.3 (metallic, dense)
Calcite: ~2.7 (lighter, softer)
Luster:
Chalcopyrite → Metallic, with brassy golden tones and possible iridescence
Calcite → Vitreous (glassy)
Transparency:
Chalcopyrite → Opaque
Calcite → Transparent to translucent
These Chalcopyrite and Calcite specimens display a beautiful contrast of metallic copper-iron sulfide (CuFeS₂) with glassy rhombohedral calcite (CaCO₃) crystals. Chalcopyrite’s brassy golden luster, sometimes with iridescent tarnish, pairs elegantly with translucent calcite for a striking mineral combination. With Mohs hardness values of 3–4, these minerals showcase both the beauty and variety of hydrothermal mineral deposits. Collectors value these specimens for their aesthetic appeal and as examples of two classic minerals often found together in copper-rich environments.
