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9654 resultaten

GYPSUM

Naturalis Biodiversity Center

TALC STEATITE (SOAPSTONE)

Naturalis Biodiversity Center

CALCITE

Naturalis Biodiversity Center

QUARTZ VAR. VEIN QUARTZ, IN SCHIST

Naturalis Biodiversity Center

CALCITE IS THE AMYGDALE MINERAL

Naturalis Biodiversity Center

CALCITE RHOMBOHEDRON IN SCHIST

Naturalis Biodiversity Center

CALCITE, CRYSTAL AGGREGATION

Naturalis Biodiversity Center

CALCITE CRYSTAL AGGREGATIONS IN CALC-TUFA

Naturalis Biodiversity Center

CALCITE. CLEAVAGE RHOMBOHEDRON

Naturalis Biodiversity Center

CALCITE. CLEAVAGE RHOMBOHEDRA

Naturalis Biodiversity Center

CALCITE. CLEAVAGE RHOMBOHEDRA

Naturalis Biodiversity Center

CALCITE. CLEAVAGE RHOMBOHEDRA

Naturalis Biodiversity Center

STEATITE (SOAPSTONE)

Naturalis Biodiversity Center

VIVIANITE

Naturalis Biodiversity Center

VIVIANITE

Naturalis Biodiversity Center

MAGNESITE

Naturalis Biodiversity Center

? WOOD, WITH WHAT ARE POSSIBLY RUSTY NAILS !

Naturalis Biodiversity Center

? PETRIFIED (SILICIFIED) WOOD. CHECK ID.

Naturalis Biodiversity Center

JASPER OPALISED WOOD

Naturalis Biodiversity Center

JASPER OPALISED WOOD

Naturalis Biodiversity Center

OPALINE PETRIFIED (SILICIFIED) WOOD

Naturalis Biodiversity Center

JASPER OPALISED WOOD

Naturalis Biodiversity Center

PETRIFIED (SILICIFIED) WOOD

Naturalis Biodiversity Center

JASPER OPALISED WOOD

Naturalis Biodiversity Center

JASPER OPALISED WOOD

Naturalis Biodiversity Center