Yes, you can. You can. However, regular potting dirt is not as good as succulent soil if it isn't tended to regularly. Although it is still possible, especially with fine pumice, it's less likely that you'll have to worry about your pumice washing away the next time you water or blowing away in the next storm. Unfortunately, you're unlikely to notice any outward signs of root rot until it's too late. The cut will be more likely to germinate if it has dried completely and developed a callus. The plant's yellow hue is caused by the sun.