palenzonaite
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Palenzonaite is a rare vanadate mineral which is a member of the berzeliite group and is related to garnet. It was discovered in 1987 by Andrea Palenzona, Professor of Chemistry at the University of Genoa. He discovered palenzonaite at Molinello mine in Val Graveglia, Liguria Italy.
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- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.AC.25
- Nickel-Strunz 9th edition (updated 2009)
- 8.AC.25
- Commons category
- Palenzonaite
- IMA Mineral Symbol
- Plz
- chemical formula
- (NaCa₂)Mn²⁺₂(VO₄)₃
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Palenzonaite is a rare vanadate mineral which is a member of the berzeliite group and is related to garnet. It was discovered in 1987 by Andrea Palenzona, Professor of Chemistry at the University of Genoa. He discovered palenzonaite at Molinello mine in Val Graveglia, Liguria Italy.
Palenzonaite is part of a small mineral family (with schaferite, berzeliite, manganberzeliite). The (As,V,P,Si)O4 tetrahedra in these garnets are isolated, not polymerized chains or sheets. Their mean Z–O distance follows the expected trend with ionic radius (shorter for Si4+, longer for As5+/V5+). Palenzonaite shows up as a rare secondary mineral in Mn-rich, low-grade metamorphic deposits.
Excerpted from Wikipedia’s “palenzonaite” article, available under the CC BY-SA 4.0 licence.