Carrollite
A variety of Carrollite Subgroup
What is Carrollite?
Carrollite got its name from where it was discovered - Carroll County in Maryland, USA. The mineral is found in hydrothermal deposits and is often associated with a number of other minerals such as Pyrite, Chalcocite, Chalcopyrite, and many others. The most beautiful of its octahedral crystals come from the mines of the Democratic Republic of Congo.
Uses & Applications
Carrollite can be used as a cobalt ore. Its crystals have a bright, silvery, metallic color and finish which rarely tarnishes, which makes them attractive to, and fairly popular with, mineral collectors.
Carrollite Market Value Calculator
Estimate the market value of Carrollite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Carrollite Localities Map
See where Carrollite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Health & Safety Information
- ⚠️Harm Reason: Carrollite dust is toxic because it contains heavy metals Copper, Cobalt.
- ⚠️How to prevent the risks of Carrollite?
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Quick Facts
Physical Properties
- Color
- Bright silver
- Hardness (Mohs)
- 4.5 - 5.5
- Density
- 4.83 g/cm³
- Streak
- Gray black
- Luster
- Metallic
- Crystal System
- Isometric
Chemical Properties
- Chemical Formula
- Cu(Co,Ni)2S4
- Elements
- Co, Cu, Ni, S
Also Known As
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