There is no specific material called Irans Silk Alabaster. However, alabaster is a natural stone that comes in a range of colors, including white, cream, beige, pink, yellow, brown, and gray. The color variations of alabaster are due to the different minerals and impurities present in the stone. Additionally, some alabaster stones can be translucent, allowing light to pass through them. The unique veining patterns of alabaster can create a silky appearance, hence the term silk alabaster.