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Iron oxide staining in granite fracture

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Iron_oxide_staining_in_granite_fracture.jpg GPR-WS3_2ThumbnailsLevasseurV Rain GaugeGPR-WS3_2ThumbnailsLevasseurV Rain GaugeGPR-WS3_2ThumbnailsLevasseurV Rain GaugeGPR-WS3_2ThumbnailsLevasseurV Rain GaugeGPR-WS3_2ThumbnailsLevasseurV Rain Gauge