Does the gray part look like metal or another kind of rock ? Is it magnetic ? Does it feel heavy ? You list in your bio you have a whites spectra v3i , what does it say it is ? iron,nickle,nothing ?
There are three main types on meteors , stony , stone and metal and all metal. I don't see any indication of heat/melting that it would have sustained coming through the atmosphere. But maybe that's a fragment of a meteor than broke up after entering the atmosphere?
Its hard to tell from pictures . Take it to your local History Museum or maybe a University or Collage geology dept and ask.
If it isnt , its still a cool rock.