Yes, there can be variations in the color of Irans Storm Gray Marble. The base color of Storm Gray Marble is typically gray, but it can also display variations such as different shades of gray, white veining, and occasional hints of green or blue. These color variations occur naturally in the marble due to the presence of various minerals and impurities during its formation. Each block or slab of Storm Gray Marble can have its own unique pattern and coloration.