Utilize the input text as a context reference, choose the right relationship between Glencore and mining from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

This in turn has impacted mining stocks, with miners such as Antofagasta (Other OTC: ANFGF - news ) and Glencore (Xetra: A1JAGV - news ) missing out on the broader market rally on Friday, falling back as copper and metals prices dropped on worries about demand in China.

Answer: industry