The logo examples aren't necessary ones i would like to copy, just had to pick some. that's why they are all very different from one another...

We'd like to see clean lines and a modern, elegant/sleek look without being too "fancy". 

 platinum group metals (platinum, palladium, rhodium) are rare, shiny/lustrous in appearance and primarily used as auto catalysts which reduce pollution - also, obviously, as jewelry and there are a myriad of other applications. The name group ten refers to the periodic table (don't want that table as a symbol or in the logo, however).

Something unique and classic in terms of styling and font. 

Group Ten Metals