https://www.cnet.com/news/gold-galaxy-s9-and-s9-plus-go-on-sale-june-24/

Galaxy S9 and S9 Plus will come in a "satiny" sunrise gold color. 

Samsung says that this color will have a "satin gloss finish", a first for Samsung smartphones. What's that mean? Samsung says it's a mix of a satiny and matte texture that's meant to "capture the texture of fabric".