I have a question regarding making my own rocks. The only White Portland Cement I can find locally is Type I. Will this be fine or do I have to find the Type I/II? Also what sand can I use for the mold? Can it be any type?
https://store.lyngsogarden.com/products/lehigh-white-cement-94-lbs-272.html
https://store.lyngsogarden.com/products/-2-16-lapis-lustre-sand-100-lbs-273.html
https://store.lyngsogarden.com/products/lehigh-white-cement-94-lbs-272.html
https://store.lyngsogarden.com/products/-2-16-lapis-lustre-sand-100-lbs-273.html