Bright shimmering triangle-shaped craft in the northwestern sky.

The craft was in the northwestern sky above the tree line, as I was heading home from work. It was visible for about half a minute, and looked as if it was stationary, or moving very slowly. The shape of the object looked like a triangle, with the right side being longer in length than the left. The craft was moving slowly, and I lost sight of it as soon as I cleared the trees onto Snelling Avenue. I would put it at between 10-20,000 feet in the air, and it was brightly shining against the sun. The craft was not visible once I broke the trees. I was trying to film it with my phone camera but could not keep the camera steady as I was driving northbound. I later reviewed the footage and did not see the UFO on the camera. It may have disappeared by the time I started filming.
The color of the craft matched the sun flare off of it, however the shape of the craft told me something was different. A few minutes prior to this, I heard what sounded like a jet liner going west to east, probably landing at Minneapolis/St. Paul International. The sound of the jet passing over was too low to be this object.