Amethyst

Description

It is the more or less intense purple color variety of "quartz" (silicon oxide crystallizing in the trigonal system)
General Physical properties: hardness 7 - density 2.65 g/cm3 - refractive index 1.544 and 1.553

- Weight: 0.60 Kt

- Size 7.80 x 5.05 x 3.20 mm

- Cut: mix, drop shape

- Color: intense purple

- Purity: slight inclusions

- Treatments: none

- Origin: Brazil