Ammonium thiosulfate precipatate

[Spunky1]

Using the ammonium thiosulfate as a leach and using sodium sulphide as a precipatate what color precipitate are precious metals? Precipitate getting now is orange resembles platinum ammonium chloride. After precipitating the solution color resembles a banana yellow with a tint of orange. Which is better to use the ammonium thiosulfate with or with out copper? With concentrates and mixed ores. Any help is appreciated! What is the best way to filter the precipatant? After sitting solution turned a light see through green. Have a high luster silver white metal on surface of liquid and a high luster blue precip on bottom.