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Ktenasite
5 in the gallery
Ktenasite is a copper- and zinc-bearing sulfate mineral that forms as light-blue to blue-green crystals in often tabular or prismatic habits. Crystals may display a vitreous to subadamantine luster and typically occur in intimate associations with other sulfate minerals in evaporite or hydrothermal environments. Specimens are most often encountered from localities in the United States, where the mineral has been described from several hydrothermal or oxidized zones, contributing to its recognition among collectors for its delicate color and transparent to translucent look.
- Formula
- ZnCu4(SO4)2(OH)6 · 6H2O
- Rarity
- Rare
- Stability
- Moderately Stable
- Collector interest
- High Interest
Where Ktenasite is found
Top localities
- Sulfate stope, Santa Rosa Mine3 specimens
- Hilarion Mine1 specimen
- Mid-Continent Mine1 specimen
About Ktenasite
Collectors value ktenasite for its distinct copper-rich composition and its striking coloration, which can stand out against common sulfate minerals in a cabinet display. Though not among the most abundant minerals, well-formed crystals, especially those with sharp edges and clean terminations, are sought after for their aesthetic appeal and mineralogical interest. Careful handling and stabilized environments help preserve the mineral’s surface and color, making it a meaningful addition for those building a sulfates-focused collection.
