Amethyst 🇧🇷
Minas Gerais, Minas Gerais, Brazil
Miniature, Item No: S21-0048
Here we have a fantastic cut and polished slice of so called "Two-Tone" amethyst from Brazil. This specimen shows an extremely pronounced pleochroism reaching from red-violet to blue. That intense color is truly exceptional! A characteristic feature is that the color is not spread uniformly but segregated into a number of discrete geometric sectors. This optical effect is best visible if you hold the specimen in front of a polarized light source, like the PC screen is for example. By turning the specimen 90 degrees you can optically "remove" the blue color completely so that it appears only in purple. In my opinion a fantastic freak of mother nature.
Single Crystal, 6.8 × 5.3 × 0.28 cm
Minas Gerais, Minas Gerais, Brazil
Miniature, Item No: S21-0048
Here we have a fantastic cut and polished slice of so called "Two-Tone" amethyst from Brazil. This specimen shows an extremely pronounced pleochroism reaching from red-violet to blue. That intense color is truly exceptional! A characteristic feature is that the color is not spread uniformly but segregated into a number of discrete geometric sectors. This optical effect is best visible if you hold the specimen in front of a polarized light source, like the PC screen is for example. By turning the specimen 90 degrees you can optically "remove" the blue color completely so that it appears only in purple. In my opinion a fantastic freak of mother nature.
Single Crystal, 6.8 × 5.3 × 0.28 cm
Minas Gerais, Minas Gerais, Brazil
Miniature, Item No: S21-0048
Here we have a fantastic cut and polished slice of so called "Two-Tone" amethyst from Brazil. This specimen shows an extremely pronounced pleochroism reaching from red-violet to blue. That intense color is truly exceptional! A characteristic feature is that the color is not spread uniformly but segregated into a number of discrete geometric sectors. This optical effect is best visible if you hold the specimen in front of a polarized light source, like the PC screen is for example. By turning the specimen 90 degrees you can optically "remove" the blue color completely so that it appears only in purple. In my opinion a fantastic freak of mother nature.
Single Crystal, 6.8 × 5.3 × 0.28 cm