Davidite

Updated on Dec 11, 2024

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Category Oxide minerals Crystal system Trigonal		Strunz classification 4.CC.40 Space group R3

Formula(repeating unit) (La,Ce,Ca)(Y,U)(Ti,Fe)20O38 Crystal class Rhombohedral (3)H-M symbol: (3)

Davidite is a rare earth oxide mineral with chemical end members La and Ce. It exists in two forms:

Davidite-(La) (La,Ce,Ca)(Y,U)(Ti,Fe³⁺)₂₀O₃₈ discovered at Radium Hill mine, South Australia in 1906 and named by Douglas Mawson for Australian geologist Tannatt William Edgeworth David (1858-1934).

Davidite-(Ce) (Ce,La)(Y,U)(Ti,Fe³⁺)₂₀O₃₈ first described in 1960 from Vemork, Iveland, Norway.

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