Albitite occurrences in rocks of Delhi Supergroup around southern parts of Haryana: its implications on search of REE and thorium mineralisation

Here we report the occurrences of new albitite zone/ rocks and rare earth elements-thorium (REE-Th) mineralisation in albitite from central and southern parts of Haryana.The albitite has been characterised by petrography, mineral chemistry and petrochemistry analysis.The albitite mainly comprises albite feldspar (Ab ~ 99%) with sphene, Fe-oxides, rutile, apatite, calcite and zircon.The albitite in the study area is enriched in Light REE, depleted in Heavy REE and contains about 40-60 ppm Th.The albitisation and its associated ore mineralisation indicate an iron oxide apatite type of deposit in the area.