Hematoid Chocolate Amethyst from Morvan, FR

Hematoid Chocolate Amethyst Quartz from Morvan, France.
 
 Crystal druse with exceptional colors 100% natural !
 Rare piece with beautiful shades of purple and red .
 It deserves its place in the most refined collections.
 
 Video: https://www.youtube.com/watch?v=JyU4EtXK8QI
 
 Origin: Argentolle Mine, Saône et Loire (71), Morvan, France.
 Size: 5cm by 4.9cm by 2.7cm for 49gr
 Chemical formula: SiO2
 Crystal System: Trigonal
 Hardness Mohs scale: 7
 
 Definition: It is a variety of purple quartz , found throughout the world ( Amethyst from Brazil, Uruguay, Africa, Mexico, Bulgaria, France, etc.). This pronounced purple color is due to silicon dioxide . It is found in very translucent to very dark format. We will find the amethyst as an element of choice in jewelry and classified as a fine stone according to the quality of the crystals . It is found in various forms: Geodes of Amethysts , Druses or clusters of Crystals , Crystal , pebbles raw or polished, Spheres or Eggs , sometimes also sliced .