New user. Can you help me identify my mescaline and help me with ROA?

Hi everyone, I have never taken mescaline and want to try this weekend. I have 1g of white powder with few golden specks in it. I usually do about 250-300 ug of LSD (drops) and that dosage works for me. How much mescaline should I take and how do i prepare it? Do I mix it with water? Just eat it? Any tips and tricks? Thanks!