TernaryListPlot

TernaryListPlot[{{u1,v1,w1},…,{un,vn,wn}}] plots a list of points with specified u, v and w coordinates in a barycentric coordinate system.

TernaryListPlot[{data1,data2,…}] plots a ternary plot with several datasets datai.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.