Yoan Beckaert

鉱物オークション (L&P Minerals)

ガーネットはネソシリケート鉱物のグループで、ガーネットの超群に属する。ガーネットの主要種は6つで、同じ一般式と同じ結晶形を持つが組成が異なる2つの等形系列に分けられる：piralspite（piropo, almandino, spessartina）とugrandite（uvarovite, grossularia, 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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トップクオリティのデマントサイト。大きさと色に優れた結晶を持つ。 Mineral Collection - Height: 13.2 cm - Width: 8.9 cm- 559 g - (1)

Ambanjaディストリクト - Diana地域 - Antstranana州, Madagascar

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Mineral collection featuring top-grade demantoid garnet crystals of notable size and colour, from Ambanja District, Diana Region, Antsiranana Province, Madagascar; weight 559 g and dimensions 13.2 × 8.9 × 4.5 cm.

トップクオリティのデマントサイト。大きさと色に優れた結晶を持つ。 Mineral Collection - Height: 13.2 cm - Width: 8.9 cm- 559 g - (1)

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Mineral collection featuring top-grade demantoid garnet crystals of notable size and colour, from Ambanja District, Diana Region, Antsiranana Province, Madagascar; weight 559 g and dimensions 13.2 × 8.9 × 4.5 cm.

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