Chalcanthite
A variety of Chalcanthite Group
What is Chalcanthite?
Chalcanthite crystals that are naturally formed are scarce to come by. There are, however, many specimens that have been created in laboratories for collectors to acquire. Be skeptical of any large crystals not labeled as synthetic. Less-attractive formations of chalcanthite are used to create a cleaning agent for sewage systems.
Uses & Applications
Chalcanthite is a striking blue copper ore which can be dissolved into water and used as a dye. This is a highly toxic substance which can degrade over time and become dangerous to people if used as décor in a non-humidity controlled environment.
Healing Properties
Chalcanthite is a calming stone that will prepare your body, mind, and spirit for meditation. Its high vibrations may help you reach a higher level of spiritual understanding. It is said to prepare the user for communication with the higher realm. Believed to promote balance and harmony in both personal and professional life, this stone's influence may strengthen friendships and evoke discipline and commitment.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Chalcanthite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Chalcanthite Localities Map
See where Chalcanthite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Associated Chakras
Health & Safety Information
- ⚠️Chalcanthite dust is toxic because it contains heavy metals Copper.
- ⚠️Chalcanthite's blue color is one of its most notable features, but it is insufficient in identification. Other useful tests include associated minerals, crystal habit, solubility and subsequent coloring of the water blue. Chalcanthite can also dye materials blue when dissolved in water, and has a peculiarly sweet and metallic taste, although consuming it can induce dangerous copper poisoning.
- ⚠️Chalcanthite dissolves easily in water, releasing copper ions that can be absorbed by the body through ingestion, inhalation, or even skin contact. Wear protective gear like masks and gloves when handling, especially during cutting or polishing. Wash hands thoroughly after contact and keep it away from children and pets to prevent accidental ingestion.
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Quick Facts
Physical Properties
- Color
- Green, green blue, light blue, dark blue, colourless to pale blue in transmitted light
- Hardness (Mohs)
- 2.5
- Density
- 2.282 g/cm³
- Streak
- White
- Luster
- Vitreous, Resinous
- Crystal System
- Triclinic
Chemical Properties
- Chemical Formula
- CuSO4 · 5H2O
- Elements
- Cu, H, O, S
Also Known As
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Chalcanthite FAQs
How do I identify Chalcanthite?
Chalcanthite can be identified by its hardness of 2.5 on the Mohs scale, Green color, Vitreous, Resinous luster, Triclinic crystal system. Look for these key characteristics when examining specimens.
What color is Chalcanthite?
Chalcanthite typically appears in Green, green blue, light blue, dark blue, colourless to pale blue in transmitted light. Color can vary depending on impurities and formation conditions.
How hard is Chalcanthite?
Chalcanthite has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.