Cortesognoite, brownish microcrystalline aggregate in hydrothermally altered silicified wood. Field of view: 3 mm. Molinello mine, Graveglia Valley, Northern Apennines, Liguria, Italy. The image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( https://creativecommons.org/licenses/by/4.0/ ). — Photo: Ma, C.; Carbone, C.; Belmonte, D. · CC BY 4.0
Cortesognoite
Cortesognoite is an IMA-recognized mineral species in the silicate class, with the chemical formula CaV₂Si₂O₇(OH)₂·H₂O.
It crystallizes in the orthorhombic crystal system (space group Cmcm). It is a member of the Lawsonite structural group.
IMA symbol Ctg, IMA status: approved, named in 2014.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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