A new occurrence of hydrous andradite within pyroclastic rocks of the Sierra De Bahoruco, Dominican Republic.

ABSTRACT: The titanium-bearing (up to 3.31 wt% TiO₂) hydrous andradite [Ca_2.98Na_(0.02)K_(0.01)Fe²⁺_(0.01)]_Σ=3.02[Fe^3 + _1.25Al_0.45Ti_0.15Fe²⁺_0.07Mg_0.04V³⁺_0.01Mn²⁺_0.01]_Σ=2.98Si_2.43O_9.72(OH)_2.28 was identified within intensely altered and weathered pyroclastic rocks in the Sierra de Bahoruco region in the Dominican Republic. It forms small isolated euhedral crystals, infillings of fissures and fractures, and large polycrystalline aggregates, in close paragenesis with clinochlore and calcite. Other phases present in the secondary assemblage, formed as a result of hydro

SUBMITTER: Wachowiak J 

PROVIDER: S-EPMC11611904 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature