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Milling microfossils

Even ultrafine targets embedded in rock can be milled with micrometer precision

The sample in the image on the right shows a 100-µm-thick polished specimen taken from approximately 600,000 year-old reef deposits in the Ryukyu Group. As you can see, milling was precisely performed along foraminifera test structures and traces of mollusk shells.

The stage of this system can move in micrometer units, allowing micromilling of extremely fine fossils while progress is monitored in real time via a CMOS camera.

Geomill326 comes with a tungsten carbide drill bit as standard equipment. When using the system for extremely fine drilling applications, even better results can be achieved with our single-crystal diamond drill bit.

Please see our “Ultrafine milling of minerals, etc.”usage example for more details.

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Usage Examples

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