Yoan Beckaert

Minerals Auction (L&P Minerals)

Garnets are a group of nesosilicate minerals belonging to the garnet supergroup. The main garnet species are six, grouped into two isomorphous series (compounds having the same general formula and the same crystal forms but with different chemical composition): pyralspite (pyrope, almandine, spessartine) and ugrandite (uvarovite, grossular, andradite).

I granati sono un gruppo di minerali nesosilicati appartenente al supergruppo del Granato.. Le specie principali dei granati sono sei, raggruppate in due serie isomorfe (composti aventi uguale formula generale e uguali forme cristalline ma con diversa composizione chimica): piralspite (piropo, almandino, spessartina) e ugrandite (uvarovite, grossularia, andradite).

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Demantoid plate with an intense color of excellent quality. Mineral Collection - Height: 7.5 cm - Width: 6.5 cm- 135 g - (1)

Ambanja district - Diana region - Antsiranana province., Madagascar

Italy

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Demantoid garnet plate with an intense, high‑quality colour from Madagascar (Ambanja, Diana region, Antsiranana), part of a mineral collection; weight 135 g, dimensions 7.5 × 6.5 × 2.1 cm.

Demantoid plate with an intense color of excellent quality. Mineral Collection - Height: 7.5 cm - Width: 6.5 cm- 135 g - (1)

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Demantoid garnet plate with an intense, high‑quality colour from Madagascar (Ambanja, Diana region, Antsiranana), part of a mineral collection; weight 135 g, dimensions 7.5 × 6.5 × 2.1 cm.

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