XGT solves this problem

Large samples that are difficult to divide into smaller pieces, such as rocks, can be loaded into the XGT-5000WR as is (maximum sample size: 350 x 400 x 40 µm). Widerange mapping can be performed over a maximum area of 100 µm x100 µm.

Procedures such as element segregation can also be performed easily, and penetrating X-ray images can be obtained for rock samples up to 25 µm thick.

  • Geologic Stratum Rock Samples and Concrete Fragments
  • Archeological Specimens
  • Various Types of Molded Products


Analysis of a Granite sample

Measurement Conditions

X-ray Tube Voltage 50 kV
X-ray Tube Current 1.0 mA
X-ray Radiation Diameter 100 µm
Sample Granite Sample

A wide area (maximum mapping area: 10 cm x 10 cm) could be analyzed and the properties of the sample checked without cutting the granite sample. It is thought that when granite is subjected to weathering, iron in black mica tends to flow from the ground surface into the ground. With the XGT, a wide area of the sample (98.816 µm x 98.816 µm) could be mapped, making it possible to check the conditions of sample weathering.

Mapping Area: 98.816 µm x 98.816 µm

Mapping Area: 98.816 µm x 98.816 µm

Mapping Results

Transmission X-ray image
Transmission X-ray image
RGB-synthetic image
RGB-synthetic image (R:Si G:Fe B:K)

The surface of the earth

Deeper in the ground

↑The XGT mapping image made it possible to verify that dissolved iron components in the sample were concentrated at the locations marked by a ★.

Granite generally contains the following minerals:

  • Quartz SiO2
  • Plagioclase CaO, Al2O3, 6SiO2
  • Potash Feldspar K2O, Al2O3, 6SiO2
  • Black Mica K(Mg,Fe)3(AlSi13O10)(OH)2