Science ❯ Chemistry

Mineralogy

Sulfur Compounds Talc Calcite Mineral Compounds Salts Salt Minerals Aqueous Alteration Fluorescence Chemical Patterns Toxic Minerals Sulfide Minerals Iron Oxides Talc Properties Lunar Minerals Iron Minerals Silicates Ammonium Compounds Microbial Activity Iron Compounds Silicon Monoxide Hydrated Minerals Iron-rich Minerals

FDA Pulls Proposed Talc–Asbestos Testing Rule, Plans Broader Rewrite

The agency cites unresolved questions over test methods, signaling a broader replacement proposal.

Deep-Sea Worm Is First Animal Known to Make Orpiment, Turning Vent Poisons Into Protection

Bennu Samples Tie Asteroid Color Differences to Surface Exposure Age