@Wiggles611,
Since its with some quartz and apparently a softer rock, it could be mica flakes, pyrite, or even gold.
Id start with pyrite. Take some of the "gold flecks and hold em in some folds of tin foil and hold a lit match under the grains. If they smell like sulfur, its pyrite, If it pops , its mica, if it just lays there and doesn't do anything it could be gold or another metal like nickel cooper amalgam.
Lets see where we get in the first test and Ill tell you what to do next.