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Is Feldspar Mined

2020-7-29South Australias major source of feldspar for many years was a pegmatite body within Adelaidean Burra Group sediments 2 km east of Gumeracha in the Mount Lofty Ranges. Approximately 56 000 t of mixed quartfeldspar rock known as chinastone were mined between 1933 and 1969 for the ceramics and glass industries