Blue Marbled Quartz 8mm Round - Large Hole Beads New Banded Rounds orange and rust are due

orange and rust are due to traces of hematite within the stone

ranging in color from pale yellow to golden yellow

The best available information indicates that the stone is a type of Dolomite that has been altered by volcanic activity

and this phenomenon is thought to be due to impurities of yttrium or organic matter within the crystal lattice

olive green and gray to green

Blue Marbled Quartz 8mm Round - Large Hole Beads New Banded Rounds orange and rust are dueMarbeled or Mosaic Quartz is a composite stone made with a combination of dyed quartz and bronzite stone remnants from the cutting process mixed with resin to create a new, custom stone a combination in a variety of colors.