Single-crystal UV/Vis optical absorption spectra of almandine-bearing and spessartine garnet: Part II. An analysis of the spin-forbidden bands of Fe 2+ , Mn 2+ , and Fe 3+

UV/Vis single-crystal spectroscopic investigation of almandine-pyrope and almandinespessartine solid solutions: Part I. Spin-forbidden Fe 2+,3+ and Mn 2+ electronic-transition energies, crystal chemistry, and bonding behavior

X-ray diffraction reveals two structural transitions in szomolnokite

Acceptance of the 2021 Roebling Medal of the Mineralogical Society of America

Coupled hydrogen and fluorine incorporation in garnet: New constraints from FTIR, ERDA, SIMS, and EPMA

The atomic arrangement and electronic interactions in vonsenite at 295, 100, and 90 K

Johnkoivulaite, Cs(Be 2 B)Mg 2 Si 6 O 18 , a new mineral of the beryl group from the gem deposits of Mogok, Myanmar

Native tungsten from the Bol'shaya Pol'ya river valley and Mt Neroyka, Russia

Northstarite, a new lead-tellurite-thiosulfate mineral from the North Star mine, Tintic, Utah, USA

Adanite, a new lead-tellurite-sulfate mineral from the North Star mine, Tintic, Utah, and Tombstone, Arizona, USA

Hagstromite, Pb 8 Cu 2+ (Te 6+ O 6 ) 2 (CO 3 )Cl 4 , a new lead–tellurium oxysalt mineral from Otto Mountain, California, USA

Micro- and nano-size hydrogarnet clusters in calcium silicate garnet: Part II. Mineralogical, petrological, and geochemical aspects

Micro- and nano-size hydrogarnet clusters and proton ordering in calcium silicate garnet: Part I. The quest to understand the nature of “water” in garnet continues

Machiite, Al 2 Ti 3 O 9 , a new oxide mineral from the Murchison carbonaceous chondrite: A new ultra-refractory phase from the solar nebula

Davidbrownite-(NH 4 ), (NH 4 ,K) 5 (V 4+ O) 2 (C 2 O 4 )[PO 2.75 (OH) 1.25 ] 4 ·3H 2 O, a new phosphate–oxalate mineral from the Rowley mine, Arizona, USA

Sr-bearing high-pressure tourmaline from the Kreuzeck Mountains, Eastern Alps, Austria

Vanadium-rich Muscovite from Austria: Crystal Structure, Chemical Analysis, and Spectroscopic Investigations

Nitrogen incorporation in silicates and metals: Results from SIMS, EPMA, FTIR, and laser-extraction mass spectrometry

Bodieite, Bi 3+ 2 (Te 4+ O 3 ) 2 (SO 4 ), a New Mineral from the Tintic District, Utah, and the Masonic District, California, USA

Pararaisaite, the Dimorph of Raisaite, from the North Star Mine, Tintic, Utah, Usa