The trick with mirrors (or especially chrome-like objects) is not setting the attributes of the mirror correctly, but making sure that the environment is set up so something will be reflected into the camera.
If a mirror is TOO reflective, the mirror can actually become invisible! This is because the mirror's own flat glass/metal flat coloring is overwhelmed by all the reflected light. You see a PERFECT reflected image, so the object itself isn't shown. This is especially true with flat mirrors.
RED GREEN BLUE VALUE COLOR 150 150 150 * REFLECT 200 200 210 * (a bit of a blue tint) FILTER 0 0 0 * SPECULAR 255 255 255 * DITHERING * * * 255 HARDNESS * * * 255 ROUGHNESS * * * 0 SHININESS * * * 0 PHONG = ON INDEX = 1.00 FOG LENGTH = 0.00