The blue-chip FTSE 100 index fell 0.2%, dragged down by mining stocks, including Rio Tinto, Anglo American and BHP, falling between 2.6% and 3.5%.
Bank stocks, HSBC Holdings, Lloyds Banking group , and Barclays Plc were also among the laggards.
British consumers cut back heavily on spending as they spent a second month in a COVID-19 lockdown in February but confidence in the economy hit a 12-month high, payment card firm Barclaycard said.
The domestically focused mid-cap FTSE 250 index fell 0.1%, led by declines in communication services stocks.
World’s largest inter-dealer broker TP ICAP Plc fell 2.7%, after it halved its dividend citing a one-off reduction, and said first-quarter revenue might be lower compared to 2020.
Cairn Energy slumped 7.0%, after agreeing to sell its interests in the UK Catcher and Kraken oil fields in the North Sea to Waldorf Production Ltd for $460 million in cash. Reporting by Shivani Kumaresan in Bengaluru