The term "soap-rock" can be used to refer to a variety of minerals or rocks that have a soapy feel when wet. Some common synonyms for this unique substance include "soapstone," "steatite," or "talc." Soapstone is a soft and pliable rock that has been used in sculpting for centuries, while steatite is a dense and highly heat-resistant rock that is often used in industrial applications. Talc, on the other hand, is a soft and powdery mineral that is commonly used in cosmetics and personal care products. Regardless of the specific type of soap-rock you are referring to, these minerals share a common characteristic of leaving your hands feeling clean and smooth after use.