Vintage Ceramic Vase Handmade 1987 Joan Muss Cream Orange Flowers Lava Textured

Vintage Ceramic Vase Handmade 1987 Joan Muss Cream Orange Flowers Lava Textured Size 13” Excellent condition A beautiful and unique piece, what I believe it to be is a ceramic with a version of lava glaze. It’s textured with what looks like sand in the form of orange and yellow flowers. Signed and dated, I can’t find any information on the artist