Engineer Weir Group was the biggest faller in early trading after reports that Citigroup had cut its price target for the FTSE 100-listed company.
The engineer saw its share price drop by 3.1% to 1,972p (at 0827 GMT).
It was joined at the bottom by Essar Energy, which dropped 2.9% to 110.5p.
A trio of miners were also at the foot of the table with copper miner Kazakhmys falling by 2.2% to 978.5p, as Rio Tinto and silver miner Fresnillo both fell by 1.7% to 3,498.5p and 1,864p, respectively.
Oil giant BP was the biggest riser as share price climbed 2.3% higher to 507.7p (at 0825 GMT).
Oil and gas services company Petrofac rose 1.7% to 1,6000p, as Guinness brewer Diageo rose by 1% to 1,519.5p.
Interdealer broker Icap added 0.5% to its share price early on, increasing to 406.7p, while engineer Meggitt rose 0.4% to 401.6p.