Quartz, var. Amethyst, Cristobalite
Posted by: Raymond McDougall on 06.02.2021 | Filed under:

Quartz, var. Amethyst, Cristobalite

Specimen # 201048
Mineral: Quartz, var. Amethyst, Cristobalite
Location: Rio Grande do Sul, Brazil
Size: 4.2 x 4.1 x 2.7 cm


This amethyst crystal features several radial inclusions of cristobalite. The amethyst itself is primarily a termination, with the remainder being bounded by angular, tapering striated contact faces. In good condition, minor chipping. The cristobalite inclusions are quite flat in aspect – the large one is very thin. With magnification the smaller ones really look like jellyfish. An interesting inclusions specimen from the John S. White quartz collection.