Mineral: Bertrandite on Schorl
Dimensions: 7 x 5 x 12.5 cm / main crystal: 4.2 cm

Description: Mass: 50 g MIM number:1967 Tufts of white, pearlescent and translucent bowtie-shaped bertrandite crystals developed near the crest and along the body of a group of three black schorl crystals forming nearly right angles with one another. The largest schorl has a very sharp termination. Photographer: FMI / James Elliott Publications: "Minéraux - Le Guide des Passionnés", "Paragénesis - Revista de Mineralogía 2019-2"

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