The result of many years spent in the mountains, quarries and mines looking and digging for crystals
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- Emerald, Leckbachrinne, Habach Valley, Austria. The main crystal measures 1,1x1cm
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- Emerald, Leckbachrinne, Habach Valley, Austria. 4,5x4cm
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- Emerald, Leckbachrinne, Habach Valley, Austria. The crystal measures 2,6×0,8cm
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- Epidote, Knappenwand, Untersulzbach Valley, Austria. 5cm tall
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- Quartz, Leffler Brunnen, Habach Valley, Austria. 7cm
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- Calcite, Leffler Brunnen, Habach Valley, Austria. 8cm
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- Fluorite, Ave-et-Auffe, Belgium. 6×4,5cm
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- Fluorite, Ave-et-Auffe, Belgium. 11x5cm
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- Fluorite, Ave-et-Auffe, Belgium. 8,5x6cm
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- Fluorite with Marcasite, Ave-et-Auffe, Belgium. 8×5,5cm
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- Fluorite, Ave-et-Auffe, Belgium. Fluorite crystal is 1cm on edge
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- Fluorite with Marcasite, Ave-et-Auffe, Belgium. 6x7cm
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- Fluorite, Wellin, Belgium. Fluorite crystal is 2cm on edge
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- Calcite, Ave-et-Auffe, Belgium. 10x8cm
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- Calcite, Ave-et-Auffe, Belgium. 14x12cm
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- Calcite with Marcasite, Ave-et-Auffe, Belgium. 16x10cm
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- Calcite with Marcasite, Auve-et-Auffe, Belgium. 18x12cm
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- Galena, Marcasite, Ave-et-Auffe, Belgium. 6x4cm
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- Calcite with Marcasite, Ave-et-Auffe, Belgium. 15x10x5cm
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- Calcite with Marcasite, Ave-et-Auffe, Belgium. 16x15x5cm
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- Fluorite on Dolomite, Wellin, Belgium. 9x5cm
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- Calcite, Wellin, Belgium. 4cm
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- Calcite, Wellin, Belgium
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- Baryte, Doische, Belgium. 18x16cm
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- Baryte, Doische, Belgium. 7x4cm
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- Baryte, Doische, Belgium. 9x6cm
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- Baryte, Doische, Belgium. 3cm
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- Baryte, Doische, Belgium. 4cm
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- Baryte, Doische, Belgium. 7×5,5cm
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- Baryte, Doische, Belgium. 8,5x4cm
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- Marcasite on Dolomite with Calcite and Galena, Resteigne, Belgium. 20x14cm
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- Baryte, Lompret, Belgium. 24x17x14cm
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- Baryte, Lompret, Belgium. 18x16x9cm
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- Baryte, Lompret, Belgium. 16x12x11cm
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- Baryte, Lompret, Belgium. 9x8x2cm
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- Baryte, Lompret, Belgium. 26x15x10cm
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- Baryte with Calcite, Lompret, Belgium. 15x11x6cm
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- Baryte, Lompret, Belgium. 18x11x11cm
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- Baryte, Lompret, Belgium. 14x10x8cm
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- Calcite, Lompret, Belgium. 9x7x6cm
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- Calcite, Lompret, Belgium. 12x6x5cm
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- Calcite, Lompret, Belgium. 22x18cm
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- Calcite, Lompret, Belgium. 17x12x10cm
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- Calcite, Lompret, Belgium. 13x10x8cm
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- Calcite, Landelies, Belgium. 11x10cm
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- Calcite, Landelies, Belgium. 10x8cm
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- Calcite, Landelies, Belgium. 8,5x7cm
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- Calcite, Landelies, Belgium. 7×7,5cm
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- Calcite, Landelies, Belgium. 4x4cm
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- Calcite, Landelies, Belgium. 5x4cm
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- Calcite, Landelies, Belgium. 9x8cm
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- Calcite, Landelies, Belgium. 3x4cm
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- Calcite, Landelies, Belgium. 5x3cm
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- Calcite, Landelies, Belgium. 3x4cm
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- Calcite, Landelies, Belgium. 5×3,5cm
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- Calcite, Landelies, Belgium. 7,5x8cm
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- Calcite, Landelies, Belgium. 7x5cm
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- Calcite, Landelies, Belgium. 5x6cm
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- Calcite, Landelies, Belgium. 11x6cm
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- Calcite, Landelies, Belgium. 12x7cm
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- Calcite, Landelies, Belgium. 9x5cm
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- Calcite, Landelies, Belgium. 12x8cm
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- Calcite, Landelies, Belgium. 10x6cm
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- Calcite, Landelies, Belgium. 7x8cm
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- Calcite, Landelies, Belgium. 6cm
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- Calcite, Landelies, Belgium. 16x12x6cm
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- Calcite, Landelies, Belgium. 10x8cm
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- Calcite, Landelies, Belgium. 9x8cm
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- Calcite, Landelies, Belgium. 8x7cm
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- Calcite, Landelies, Belgium. 11x6cm
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- Calcite, Landelies, Belgium. 15x11cm
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- Calcite, Landelies, Belgium. 15x7x4cm
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- Calcite, Landelies, Belgium. 20x17x6cm
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- Calcite, Landelies, Belgium. 25x22cm
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- Calcite, Landelies, Belgium. 22x15cm
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- Quartz, Marvie, Belgium. 11x10cm
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- Quartz, Marvie, Belgium. 15cm
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- Quartz, Marvie, Belgium. 10cm
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- Quartz, Marvie, Belgium. 7cm
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- Rutilated Quartz, Marvie, Belgium. 6cm
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- Quartz, Marvie, Belgium. 14cm
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- Quartz, Marvie, Belgium. 21cm tall
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- Rutilated Quartz, Marvie, Belgium. 5cm
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- Rutilated Quartz, Marvie, Belgium. 4cm
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- Quartz, Marvie, Belgium. 26x22cm
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- Quartz, Marvie, Belgium. 19cm
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- Quartz, Marvie, Belgium. 20cm
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- Quartz, Marvie, Belgium. 26x22cm
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- Faden Quartz, Wardin, Belgium. 7x6cm
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- Quartz, Wardin, Belgium. 10x6cm
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- Quartz with Chlorite and Hematite, Bierghes, Belgium. 20x16cm
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- Quartz, Bierghes, Belgium. 24x18cm
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- Quartz, Bierghes, Belgium. 20x14cm
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- Quartz, Bierghes, Belgium. 9cm
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- Quartz, Bierghes, Belgium. 11cm
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- Quartz, Bierghes, Belgium. 12x13cm
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- Quartz, Bierghes, Belgium. 15x12cm
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- Quartz, Bierghes, Belgium. 12x10cm
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- Quartz, Bierghes, Belgium. 13cm
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- Quartz, Bierghes, Belgium. 22x10cm
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- Quartz, Bierghes, Belgium. 20x12cm
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- Quartz, Bierghes, Belgium. 35x20cm
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- Quartz, Bierghes, Belgium. 32x15cm
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- Quartz, Bierghes, Belgium. 36x32cm
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- Quartz, Bierghes, Belgium. 32x21cm
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- Fadenquartz, Bierghes, Belgium. 8x5cm
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- Fadenquartz with Chlorite, Bierghes, Belgium. 12x7cm
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- Fadenquartz, Bierghes, Belgium. 10x6cm
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- Fadenquartz, Bierghes, Belgium. 6x4cm
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- Fadenquartz cluster, Bierghes, Belgium. 16x15cm
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- Fadenquartz, Bierghes, Belgium, 11cm
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- Fadenquartz, Bierghes, Belgium, 4cm
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- Fadenquartz, Bierghes, Belgium, 3cm
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- Fadenquartz, Bierghes, Belgium, 4cm
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- Fadenquartz, Bierghes, Belgium. 4x4cm
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- Fadenquartz, Bierghes, Belgium. 5x6cm
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- Fadenquartz, Bierghes, Belgium. 6x3cm
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- Fadenquartz, Bierghes, Belgium. 11x6cm
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- Quartz with Chlorite and Pyrite, Bierghes, Belgium. 12x9cm
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- Quartz with Chlorite and Pyrite, Bierghes, Belgium. 10x7cm
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- Quartz with Chlorite and Pyrite, Bierghes, Belgium. 12x9cm
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- Quartz with Chlorite and Pyrite, Bierghes, Belgium. 12x8cm
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- Quartz, Bierghes, Belgium, 11x10cm
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- Quartz, Bierghes, Belgium. 12x10cm
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- Quartz with Chlorite, Bierghes, Belgium. 7x5cm
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- Quartz, Bierghes, Belgium. 10x8cm
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- Quartz, Bierghes, Belgium. 14x8cm
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- Quartz, Bierghes, Belgium. 12x12cm
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- Quartz, Bierghes, Belgium. 13x7cm
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- Quartz, Bierghes, Belgium. 13x8cm
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- Quartz, Bierghes, Belgium. 21x9cm
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- Quartz, Bierghes, Belgium. 42x34cm
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- Quartz, Bierghes, Belgium. 26x19cm
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- Quartz, Bierghes, Belgium. 34x20cm
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- Pyrite, Bierghes, Belgium. 12x8cm
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- Pyrite on marble, Bierhes, Belgium, 11x5cm
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- Pyrite on Quartz, Bierghes, Belgium. 4x5cm
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- Epidite, Quenast, Belgium. 8x6cm
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- Epidite, Quenast, Belgium. 8x6cm
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- Epidite, Quenast, Belgium. 6x5cm
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- Epidote with Calcite, Quenast, Belgium. 10x7cm
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- Calcite, Leffe, Belgium. 8x7x6cm
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- Calcite, Haut-le-Wastia, Belgium. 7,5cm
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- Calcite, Haut-le-Wastia, Belgium. 3,5cm
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- Marcasite on Sphalerite. Seilles, Belgium. 20x16cm
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- Marcasite on Sphalerite. Seilles, Belgium. 27x11x10cm
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- Marcasite on Schalenblende, Seilles, Belgium. 18x14cm
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- Galena on Sphalerite, Seilles, Belgium. 20x17cm
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- Marcasite on Schalenblende, Seilles, Belgium. 12,5x8cm
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- Galena on Aragonite, hastenrath, Germany. 15x8cm
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- Galena, Hastenrath, Germany. 8×7,5cm
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- Millerite on Calcite. Hagen, Germany. 8x6cm
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- Millerite on Calcite, Hagen, Germany. 18x17cm
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- Millerite on Calcite, Hagen, Germany. Spray is 5cm
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- Topaz on Quartz, Schneckenstein, Germany. The crystal measures 2×1,5cm
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- Pyromorphite, Bad Ems, Germany. 4x4cm
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- marcasite on Schalenblende, Wülfrath, Germany. 21x14cm
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- Sphalerite, Nenthead, United Kingdom. 7x5cm
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- Sphalerite, Nenthead, United Kingdom. 12x10cm
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- Calcite, Chanxhe, Belgium. 5x7cm
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- Fluorite, Frosterley, United Kingdom. 18x12cm
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- Fluorite, Frosterley, United Kingdom. 6,5x5cm
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- Pyromorphite, Longvilly, Belgiem. 7x3cm
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- Quartz, Crupet, Belgium. 12,5x11cm
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- Quartz geode, Crupet, Belgium. 25x20cm
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- Quartz, Crupet, Belgium. 9x11cm
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- Quartz, Bilstain, Belgium. 12cm
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- Apatite with Epidote, Riveo, Switzerland. 3cm
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- Epidote, Riveo, Switzerland. 4cm
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- Calcite, Wülfrath, Germany. 12,5x9cm
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- Pyromorphite, Rohdenhaus, Germany. 7x5cm
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- Pyromorphite, Rohdenhaus, Germany. 5x4cm
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- Quartz, Wülfrath, Germany. 8x6cm
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- Gypsum with Anglesite, Wülfrath, Germany. 7x6cm
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- Sphalerite with Chalcopyrite on Dolomite, Wirtenbach, Germany. 6x5cm
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- Chalcopyrite on Dolomite, Wirtenbach, Germany. 10x9cm
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- Sphalerite with Chalcopyrite on Dolomite, Wirtenbach, Germany. 10x6cm
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- Sphalerite with Chalcopyrite and Pyrite on Dolomite, Wirtenbach, Germany. 11x8cm
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- Quartz, Wülfrath, Germany. 65x60cm
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- Cal;cite, Quartz, Wülfrath, Germany. 25x22cm
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- Quartz, Heiligenhaus, Germany. 18x12cm
HARJO NEUTKENS 