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Mineralogy Lab
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The lab reads minerals as recorders of the Earth and the solar system.
AboutAbout the lab
Listening closely to minerals to hear the Earth and the universe.
The Mineralogy Lab studies the formation and evolution of the Earth and the solar system by analyzing terrestrial minerals and meteorites and conducting experiments.
By analyzing minerals down to the nanometer scale and combining experiments under both terrestrial and space conditions, the lab aims to clarify the raw materials and evolutionary processes of the solar system.
Its research targets also include meteorites that fell from space and extraterrestrial materials brought back by spacecraft such as Hayabusa2.
For graduate study, the lab accepts entrants to the master's program and transfer students into the doctoral program, regardless of the university or faculty they come from.
The lab holds a research presentation session once a week and also conducts joint lab seminars with other universities.
The lab has multiple faculty members with different areas of expertise, and students can receive supervision from different faculty members as needed.
Lab visits are accepted at any time, and students can visit from their first year as undergraduates.
Key terms
- Phase transformation
- A change in which the crystal structure of a mineral turns into a different structure because of changes in temperature or pressure
- Transmission electron microscope
- A microscope that passes an electron beam through a thinned sample to observe and analyze minerals at the nanometer scale
- New mineral
- A mineral whose combination of chemical composition and crystal structure has not previously been known
NewsLab news
A paper by Project Assistant Professor Matsumoto and colleagues is published in Nature Astronomy
A paper by Associate Professor Igami and colleagues is published in American Mineralogist
ResearchResearch themes
Through observation and analysis, reproduction experiments, and computer simulations, the lab reads the history of formation and change recorded in the chemical composition, crystal structure, external form, and microstructure of minerals.
*Illustrative imageMineral Growth, Phase Transformation, and Phase Separation
The lab has investigated phase changes in pyroxene through in situ high-temperature experiments and computer simulations and has constructed phase diagrams. It also uses computers to calculate the motion of atoms and molecules in mineral crystal structures and to verify structural stability and thermodynamic properties.
*Illustrative imageMineral Description and New Minerals
The lab places importance on careful description of natural minerals. It has reported more than 20 minerals new to Japan and has contributed to the discovery of five new minerals: minohlite, adachiite, imayoshiite, misakiite, and iyoite.
*Illustrative imageNanoscale Observation and 3D Analysis
The lab works on developing methods for nanometer-scale observation and analysis of minerals with a transmission electron microscope, sample preparation with a focused ion beam instrument, and non-destructive 3D structural analysis by micro-CT imaging.
MembersFaculty
The Mineralogy Lab's members consist of faculty, doctoral and master's students, and fourth-year undergraduates.
- ProfessorAkira Miyake
- Associate ProfessorYohei Igami
- Assistant ProfessorHaruka Ono
- Program-Specific Assistant Professor, Hakubi Center, and Affiliated Faculty MemberToru Matsumoto
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Olivine Crystals from El Golfo on Lanzarote” Jan Helebrant (Juhele_CZ on Flickr) https://www.flickr.com/people/96541566@N06/ / CC BY-SA 2.0 (cropped)
- Mineral Growth, Phase Transformation, and Phase Separation: “PyroxeneExsol 0.5mmm” user:Omphacite / Public domain (cropped)
- Mineral Description and New Minerals: “Two new minerals, badengzhuite and zhiqinite - Figure 3 (cropped)” German Research Centre for Geosciences / CC BY 4.0 (cropped)
- Nanoscale Observation and 3D Analysis: “Thin section of apollo sample12005 in XPL” Warrenmck / CC BY-SA 4.0 (cropped)
- Related lab (Cosmochemistry Lab (Itoh, Geology and Mineralogy)): “Allende meteorite” Shiny Things / CC BY 2.0 (cropped)
- Related lab (Earth and Planetary Materials Science (Petrology Group, Kawakami) Lab): “Thin section scan crossed polarizers Siilinjärvi R” kallerna / CC BY-SA 4.0 (cropped)
- Related lab (Earth Biosphere History (Ubukata, Geology and Mineralogy) Lab): “Ammonite Pavement” RealGatba / CC0 (cropped)
- Related lab (Kawaguchi Lab): “Neurons (Purkinje cells)” Lennart Rikk / CC0 (cropped)
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