Goethite specimen from this classic French mine, now closed and partially restored, which shows druses of goethite small crystals, defined and very, very bright. Under loupe is incredible. The sparkles of the crystals in the light are spectacular. The specimen was analyzed by Raman spectroscopy to confirm the species.

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Goethite specimen from this classic French mine, now closed and partially restored, which shows druses of goethite small crystals, defined and very, very bright. Under loupe is incredible. The sparkles of the crystals in the light are spectacular. The specimen was analyzed by Raman spectroscopy to confirm the species.

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Botryoidal aggregates formed by goethite microcrystals, with a delicate velvety appearance with deep brown to black color zoning. In section we can observe the radial arrangement of goethite crystals. The matrix is a mixture of goethite with some siderite rhombohedrons. These specimens are from a find in the Mont-Roc mine, that is known for the French mineralogy for its brilliant goethites and fluorite.

Botryoidal aggregates formed by goethite microcrystals, with a delicate velvety appearance with color zoning that varies between brown garnet to dark gray. In section we can observe the radial arrangement of goethite crystals. The matrix is a mixture of goethite with some siderite rhombohedrons and quartz. These specimens are from a recent find in the Mont-Roc mine, that is known for the French mineralogy for its brilliant goethites and fluorite.