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==Schwere Fraktion== | ==Schwere Fraktion== | ||
The heavy mineral fraction is concentrated in minerals such as zircon, garnet, apatite, sphene, monazite... | |||
Before proceeding to the picking of the desired mineral a magnetic separation is required to facilitate the picking. | |||
If the heavy mineral fraction is still encumbered by lighter minerals such as quartz it is preferable to add a heavy liquid separation or a panning step to make the picking easier. | |||
==Mittlere Fraktion== | ==Mittlere Fraktion== |