Marble wax is an extra dip-/decoration wax which you can use for a artisan/hand made effect. The "crystal effect" that can be reached is different for every candle.
The colored candle can be dipped or poured with "pure" marble wax or with the addition of approximately 2% color pigment (depending on the color).
The temperature should be around 70 - 80°C. The marble wax should not be mixed with other types of waxes because it will lose its "crystal structure". Make sure you always heat marble wax in stainless steel material!