Chalconatronite
A variety of Minerals
What is Chalconatronite?
Chalconatronite is a carbonate mineral and rare secondary copper mineral that contains copper, sodium, carbon, oxygen, and hydrogen, its chemical formula is Na2Cu(CO3)2•3(H2O). Chalconatronite is partially soluble in water, and only decomposes, although chalconatronite is soluble while cold, in dilute acids. The name comes from the mineral's compounds, copper ("chalcos" in Greek) and natron, naturally forming sodium carbonate. The mineral is thought to be formed by water carrying alkali carbonates (possibly from soil) reacting with bronze. Similar minerals include malachite, azurite, and other copper carbonates. Chalconatronite has also been found and recorded in Australia, Germany, and Colorado.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Chalconatronite 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.
Chalconatronite Localities Map
See where Chalconatronite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Greenish-blue to pale blue
- Density
- 2.31 g/cm³
Chemical Properties
- Chemical Formula
- Na2Cu(CO3)2 · 3H2O
- Elements
- C, Cu, H, Na, O
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Chalconatronite FAQs
How do I identify Chalconatronite?
Chalconatronite can be identified by its Greenish-blue to pale blue color. Look for these key characteristics when examining specimens.
What color is Chalconatronite?
Chalconatronite typically appears in Greenish-blue to pale blue. Color can vary depending on impurities and formation conditions.
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