Natural Citrine Rough from Congo Under 6 grams

1. 1.51" x 0.44" x 0.35" 2. 0.88" x 0.73" x 0.60" 3. 1.45" x 0.40" x 0.35" 4. 0.82" x 0.49" x 0.47" 5. 1.38" x 0.53" x 0.33" 7. 1.24" x 0.51" x 0.38" 8. 0.92" x 0.62" x 0.59" 9. 1.38" x 0.48" x 0.41" 11. 1.28" x 0.46" x 0.35" 12. 0.98" x 0.49" x 0.40" 13. 1.54" x 0.35" x 0.29" 14. 0.99" x 0.54" x 0.43" 15. 1.27" x 0.49" x 0.34" 16. 1.02" x 0.63" x 0.50" 17. 0.79" x 0.51" x 0.66" 18. 1.07" x 0.65" x 0.45" Citrine is a silicon dioxide mineral, a member of the Quartz group with a hardness of 7. Its crystal system is trigonal, and its yellow pigmentation is derived from iron. It varies in shade from very pale yellow to a deep amber, nearly orange, with some specimens exhibiting brownish tinges. Much of the commercial Citrine on the market is heat-treated Amethyst. In general, the deeper amber and orangish shades are heat treated. Natural Citrines are mostly a pale-yellow color. Deposits of natural Citrine have been found in Brazil, Africa, Madagascar, Spain, Russia, France, Scotland, and t