Question: where do opal apples come from?
Answer: Opal (apple) Opal® is the brand name for a cultivar of apple also known as 'UEB32642', produced by crossing 'Golden Delicious' with 'Topaz'. Developed by the Institute of Experimental Botany in Prague and FruitSelect in 1999, it is grown by FirstFruits Farms LLC in Washington and marketed by FirstFruits Marketing.