"I Was Right About the Comet!"

New Comet Dust Mineral Discovered

"The mineral, a manganese silicide named Brownleeite, was discovered within an interplanetary dust particle, or IDP, that appears to have originated from comet 26P/Grigg-Skjellerup. The comet originally was discovered in 1902 and reappears every 5 years."

http://www.redorbit.com/news/space/1430019/new_comet_dust_mineral_discovered/index.html