mineral Archives

Overview of Raman spectroscopy dataset of apatite. A) The diversity of apatite samples among three classes—biotic, abiotic, and synthetic. B) A natural abiotic carbonated-fluorapatite Raman spectrum with peak fitting using a Lorentz line shape. The spectrum and corresponding chemical formula are from the RRUFF database (https://www.rruff.net/). The symbolic square represents vacancies in the apatite lattice. C) The zoom-in spectra of bands 1 and 2 (from the same v2 mode of PO3− 4) and their three peak parameters (full width at half maximum, Raman shift, and normalized intensity) from spectral fitting.

Mineral Biosignature Identification From Raman Spectroscopy Using Machine Learning

by Keith CowingJuly 20, 2026July 20, 2026

[PNAS] Biosignature detection remains a key challenge in astrobiology, yet robust mineral biosignatures remain limited. Raman spectroscopy is increasingly applied in planetary exploration, but its high-dimensional spectral information has not […]

mineral

Mineral Biosignature Identification From Raman Spectroscopy Using Machine Learning

Underwater Oxygen Loss Threatens Earth’s Stability, Researchers Warn

Fire And Ice: Were Yellowstone’s Past Volcanic Eruptions And Glaciations Related?

Substrate-Agnostic 3x: Biosignatures, Technosignatures, Ecologies

Planet-moon Ejections In Close Stellar Encounters

First Study Hints Solar Storms May Alter The Weather During Martian Dust Storms