Nealite
1 in the gallery
Nealite is a lead iron arsenate chloride mineral. It forms tabular to prismatic crystals with a pale yellow to brown coloration and a vitreous to resinous luster, often appearing as intergrown aggregates. The composition places lead and arsenate at the core, with chlorine and water molecules contributing to its crystalline framework, and iron(II) helping to define its subtle color and internal features. Crystals are typically small, but well-formed specimens can display clear faces and sharp edges that appeal to collectors who value crystal form and mineral chemistry.
- Formula
- Pb4Fe2+(As3+O3)2Cl4 · 2H2O
- Rarity
- Rare
- Stability
- Stable
- Collector interest
- Moderate Interest
Where Nealite is found
Top localities
- Sounion1 specimen
About Nealite
Notable specimens have come from classic arsenate-bearing localities where lead-rich assemblages occur, and where late-stage hydrothermal fluids deposited complex minerals. Collectors are drawn to Nealite for its unusual combination of lead content, arsenate chemistry, and its characteristic transparency in thin areas, which can reveal internal zoning and growth patterns. While relatively rare compared with more common arsenates, Nealite offers a distinctive look—light-colored crystals set against darker matrix in compact clusters—that can be a striking addition to a cabinet or display.