Larderellite specimens for sale
1 for sale · $400 USD
Larderellite is a relatively rare phosphate mineral with a complex borate-oxide composition that includes ammonium and water in its structure. In hand sample it often appears as small, vitreous to resinous crystals or aggregates, typically colorless to pale yellow or white, reflecting a subdued lustre and transparent to translucent character. The mineral forms in low-temperature, hydrothermal environments and has been associated with environments where ammonium-bearing fluids are present, contributing to its distinctive chemical signature. Afghan specimens are among the most cited, highlighting a locality with historical importance for this species and contributing to its mineralogical profile.
- Formula
- (NH4)B5O7(OH)2 · H2O
- Rarity
- Rare
- Stability
- Moderately Stable
- Collector interest
- Moderate Interest
- Classification notes
- Borates; ammonium borates; hydrated ammonium borate mineral (IMA recognized species)
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Where Larderellite is found
About Larderellite
Collectors seek larderellite for its rarity and for the insight it offers into ammonium-bearing mineral systems. Its compact crystal forms and the potential for well-formed habit make it a compelling addition to a cabinet focused on unusual borate-oxide minerals. While not widely distributed, high-quality specimens from notable localities continue to attract the attention of enthusiasts who specialize in complex, compositionally rich minerals and those pursuing a broad spectrum of ammonium minerals.