Gasparite-(Ce)

gasparite-(Ce)

synchysite

cafarsite

chernovite

Images

Formula: Ce(AsO₄)
Anhydrous normal arsenate, monazite-(Ce) group
Crystal System: Monoclinic
Specific gravity: 5.63 calculated
Hardness: 5
Streak: White
Colour: Light brown-red
Weakly RADIOACTIVE
Environments

Metamorphic environments

Localities

At the type locality, the Monte Cervandone area, Devero Alp, Baceno, Verbano-Cusio-Ossola Province, Piedmont, Italy, gasparite-(Ce) occurs as rims to complete pseudomorphs of synchysite crystal aggregates in fissures mineralised during amphibolite facies metamorphism of metasedimentary rock. Associated minerals include rutile, anatase, magnetite, hematite, synchysite-(Ce), chernovite and cafarsite (AM 73.1494).

At the Kesebol mine, Strandhem ore field, Åmål, Västra Götaland County, Sweden, gasparite-(Ce) is reported from the manganese-iron-copper deposit, where it occurs as yellowish euhedral crystals up to 0.5 mm in size. Associated minerals include rhodonite, andradite, Mn²⁺ dominant "allanite-(Ce)", chernovite-(Y), manganese-bearing calcite and quartz (EJM 16.111-116).

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