Congo Citrine

Citrine from Congo, Africa
 
 Real Citrines are rare , many are fake (either Smoky Quartz or Heated Amethyst) here it is a real Citrine gemstone with cathedral or cactus crystallization.
 Unique and sublime piece, dark golden color .
 The pieces of this deposit are often well damaged, here we have a fairly clean piece, just to note a slight blow on one of the faces of the point at the back.
 
 Video: https://www.youtube.com/watch?v=xO2uA6bBpsE
 
 Provenance: Lwena, Katanga (Shaba) Prov., Democratic Republic of the Congo, Africa
 Size: 10.5 cm by 6 cm by 5.5 cm for 370 gr
 Chemical formula: SiO2
 Crystal system: trigonal
 Mohs scale: 7
 
 Definition:
 Citrine is a variety of quartz whose yellow color is due to the presence of minute amounts of iron oxide in the mineral . Citrine is found quite rarely in its natural state. Heated amethysts which take on a yellow color instead of purple and sold as Citrine are often found in shops . Here is our full article on crystal treatment to avoid !