Amethyst "Sphinx Butterfly" from Guerrero, Mexico

Amethyst "Sphinx Butterfly" from Guerrero, Mexico
 
 Ultra rare or even impossible to find mineral with sumptuous colors and bi-terrmined " Sphinx Butterfly " type crystals . Piece from an old collection .
 Ideal for collectors , this Amethyst mineral will bring satisfaction and deserve its place in a beautiful collection or showcase . Piece intact.
 
 Video: https://www.youtube.com/watch?v=RTTbnKf6pHE
 
 Origin: Guerrero , Zumpango Del Rio, Mexico
 Size: 8.5cm by 2.5cm by 1.5cm
 Weight: 34gr (with pvc base)
 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 …). This pronounced purple color is due to silicon dioxide . It is found in a very translucent to very dark format. We will find 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 in slices .