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Amber | |
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Noord-Holland, Netherlands Beach collected amber from Kennemerstrand near IJmuiden. Size 20x15 mm. Gerard van der Veldt collection and photo. |
| © G. van der Veldt | Photo ID: 192460 View Count: 88 |
Ankerite : Ca(Fe2+ ,Mg,Mn2+)(CO3)2 | |
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Laura-Julia mines, Landgraaf-Eygelshoven, Limburg, Netherlands Hydrothermal vein in sandstone showing akerite crystals in a small cavitie . From Laura mine dump. Size 20x16cm. Self collected in 1994. Gerard van der Veldt collection and photo. |
| © G. van der Veldt | Photo ID: 89026 View Count: 222 |
Ankerite : Ca(Fe2+ ,Mg,Mn2+)(CO3)2 | |
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Laura-Julia mines, Landgraaf-Eygelshoven, Limburg, Netherlands Ankerite crystals with minor quartz and chalcopyrite on sandstone, from Laura mine dump. Size 8.5x6 cm. Self collected in 1985. Gerard van der Veldt collection and photo. |
| © G. van der Veldt | Photo ID: 89021 View Count: 184 |
Ankerite : Ca(Fe2+ ,Mg,Mn2+)(CO3)2 | |
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Laura-Julia mines, Landgraaf-Eygelshoven, Limburg, Netherlands From Laura mine dump. Size 8.5x8cm. Self collected in 1988. Gerard van der Veldt collection and photo. |
| © G. van der Veldt | Photo ID: 115771 View Count: 121 |
Ankerite : Ca(Fe2+ ,Mg,Mn2+)(CO3)2 | |
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Laura-Julia mines, Landgraaf-Eygelshoven, Limburg, Netherlands From Laura mine dump, Size 11x11cm. Self collected in 1987. Gerard van der Veldt collection and photo. |
| © G. van der Veldt | Photo ID: 115770 View Count: 107 |
Calcite : CaCO3 | |
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Ratum quarry, Vosseveld, Winterswijk, Gelderland, Netherlands Enlargement of the calcite 16x. Photo & col., John Nijhuis. |
| © J.N. | Photo ID: 51933 View Count: 250 |
Calcite : CaCO3, Celestine : SrSO4 | |
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Ratum quarry, Vosseveld, Winterswijk, Gelderland, Netherlands Doubly terminated calcite crystals on celestine from Eastern quarry (now closed), size 4x2.5cm. Self collected in 1988. Gerard van der Veldt collection and photo. |
| © G. van der Veldt | Photo ID: 145501 View Count: 130 |
Calcite : CaCO3 | |
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Ratum quarry, Vosseveld, Winterswijk, Gelderland, Netherlands From Eastern quarry (now closed). Size 7x5.5cm. Self collected in 1989. Gerard van der Veldt collection and photo. |
| © G. van der Veldt | Photo ID: 114922 View Count: 111 |
Calcite : CaCO3, Celestine : SrSO4 | |
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Ratum quarry, Vosseveld, Winterswijk, Gelderland, Netherlands From Eastern quarry (now closed). Size 8x7.5cm. Found in 1989. Gerard van der Veldt collection and photo. |
| © G. van der Veldt | Photo ID: 114923 View Count: 106 |
Calcite : CaCO3, Celestine : SrSO4 | |
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Ratum quarry, Vosseveld, Winterswijk, Gelderland, Netherlands From Western quarry (abandoned), white calcite crystals with pinkish celestine. Size 7.5x6.5cm. Self collected in 1984. Gerard van der Veldt collection and photo. |
| © G. van der Veldt | Photo ID: 115470 View Count: 105 |
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