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(click on thumbnails to enlarge pictures)
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Madagascar, Rhexoxylon sp., Mesozoic, 16,5 cm |
Madagascar, coniferous wood, Star Dadoxylon, Mesozoic, 16,5 cm |
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Madagascar, Rhexoxylon sp., Mesozoic, 10 cm |
Madagascar, gymnospermae, mineralization with barite, Mesozoic, 13 cm |
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Madagascar, coniferous wood, mineralization with agate
and quartz crystals, Mesozoic, 14 cm |
Madagascar, Rhexoxylon sp.
with dendrites, Mesozoic,
12 cm |
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Madagascar, coniferous wood, Star Dadoxylon, Mesozoic, 10,5 cm |
Madagascar, coniferous wood, Star Dadoxylon (both sides
of the specimen), Mesozoic, 8 cm |
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Madagascar, coniferous wood, Star Dadoxylon, Mesozoic, 6 cm |
Madagascar, coniferous wood, Star Dadoxylon, Mesozoic, 7,5 cm |
Madagascar, coniferous wood, Star Dadoxylon, Mesozoic, 8 cm |
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Madagascar, coniferous wood, Mesozoic,
diameter 11 cm |
Madagascar, coniferous wood, Mesozoic,
diameter 10 cm |
Madagascar, coniferous wood, Mesozoic,
diameter 2 cm |
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Madagascar, coniferous wood, Mesozoic,
diameter 5,5 - 7,5 cm |
Madagascar, coniferous wood, Mesozoic,
diameter 4 - 7 cm |
Madagascar, coniferous wood, Mesozoic,
diameter 6,5 - 7,5 cm |
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Madagascar, coniferous wood, Mesozoic,
diameter 4 - 6 cm |
Madagascar, coniferous wood, Mesozoic,
diameter about 4 cm |
Madagascar, coniferous wood, Mesozoic,
diameter about 5 cm |
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Madagascar, coniferous wood, Mesozoic,
diameter about 2 cm |
Madagascar, agatized wood, Mesozoic,
diameter about 2 cm |
Madagascar, coniferous wood, Mesozoic,
diameter about 5,5 cm |
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Madagascar, petrified branch, Coniferopsida class, Triassic, diameter
3 cm, lenght 5 cm |
Madagascar, Coniferopsida class, Triassic, quartz mineralisation, diameter
3 - 4 cm, lenght 6 cm |
Madagascar, Coniferopsida class, Triassic, quartz mineralisation,
diameter 30 - 41 cm |
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Madagascar, Podocarpoxylon sp., 230 mya (Triassic), jasper mineralisation, 10 x 11 cm |
Madagascar, 230 mya (Triassic), quartz mineralisation, 4 x 6,5 cm |
Madagascar, 230 mya (Triassic), quartz mineralisation, 7,5 x 14 cm |
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Madagascar, 230 mya (Triassic), quartz mineralisation, complete section, diameter
11,5 - 15 cm |
Madagascar,
quartz mineralisation,
complete section,
diameter 5 - 6 cm |
Madagascar,
mixed quartz-agate mineralisation, hematite additions, repeated crystallization of quartz,
8 x 10 cm |
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Madagascar, 230 mya (Triassic), quartz mineralisation, complete section, diameter
5 - 5,5 cm |
Madagascar, 230 mya (Triassic), quartz mineralisation, complete section, diameter
5 - 6,5 cm |
Madagascar,
quartz mineralisation,
complete section,
diameter 4,5 - 7 cm |
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Madagascar, mixed mineralisation,
complete section,
diameter 6 - 7,5 cm |
Madagascar, 230 mya (Triassic), quartz mineralisation, hematite additions, 7 x 8,5 cm |
Madagascar, quartz mineralisation,
complete section,
diameter 6,5 - 8,5 cm |
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Madagascar, jasper mineralisation,
diameter 16 - 19 cm |
Madagascar, jasper mineralisation, hematite additions, complete section,
diameter 9 - 10 cm |
Madagascar, quartz mineralisation, 7 x 9,5 cm |
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Madagascar, quartz mineralisation, section
of branch,
diameter 3,5 cm |
Madagascar,
quartz mineralisation,
section of branch,
diameter about 3 cm |
Madagascar, quartz mineralisation, traces of translocating,
8 x 14 cm, height 7 - 11 cm |
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| Madagascar, quartz mineralisation, hematite additions, complete section, diameter 10,5 cm |
Madagascar, quartz mineralisation,
complete section, diameter 8 - 8,5 cm |
Madagascar, hematite additions,
complete section,
diameter 5,5 - 8,5 cm |
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| Madagascar, quartz mineralisation, 8 x 14 cm, height 7 cm |
Madagascar,
quartz mineralisation,
complete section,
diameter 9 - 13 cm |
Madagascar, quartz mineralisation,
complete section, diameter
8 - 8,5 cm |
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Madagascar, Mesozoic,
diameter about 2 cm |
Madagascar, quartz mineralisation,
traces of translocating,
diameter about 7,5 cm, height 13 cm |
Madagascar, jasper mineralisation, repeated crystallization of quartz,
piece of trunk 12 x 17 cm |
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