Calcium sulfate precipitation pathways in natural and engineered environments

AES Van Driessche, TM Stawski, M Kellermeier - Chemical Geology, 2019 - Elsevier
The solution-mediated formation of calcium sulfate minerals, ie gypsum, anhydrite and
bassanite, is a common process in both natural and engineered settings. It plays a key role …

Formation of natural gypsum megacrystals in Naica, Mexico

JM García-Ruiz, R Villasuso, C Ayora… - …, 2007 - pubs.geoscienceworld.org
Exploration in the Naica mine (Chihuahua, Mexico) recently unveiled several caves
containing giant, faceted, and transparent single crystals of gypsum (CaSO4• 2H2O) as long …

Ultraslow growth rates of giant gypsum crystals

AES Van Driessche, JM García-Ruíz… - Proceedings of the …, 2011 - pnas.org
Mineralogical processes taking place close to equilibrium, or with very slow kinetics, are
difficult to quantify precisely. The determination of ultraslow dissolution/precipitation rates …

Particle-mediated nucleation pathways are imprinted in the internal structure of calcium sulfate single crystals

TM Stawski, HM Freeman… - Crystal Growth & …, 2019 - ACS Publications
Calcium sulfate minerals are found in nature as three hydrates: gypsum (CaSO4· 2H2O),
bassanite (CaSO4· 0.5 H2O), and anhydrite (CaSO4). Due to their relevance in natural and …

In Situ Observation of Step Dynamics on Gypsum Crystals

AES Van Driessche, JM García-Ruiz… - Crystal growth & …, 2010 - ACS Publications
In this work we studied the kinetics of gypsum crystals growing from aqueous solutions as a
function of temperature and supersaturation. Laser confocal differential interference contrast …

The changing sulphur content of a northern Chinese dust storm: Initiation, attenuation and culmination

X Feng, L Shao, T Jones, Y Li, M Zhang, S Ge… - Atmospheric …, 2023 - Elsevier
It is predicted that changing climate trends on land in northern China will be associated with
increasingly frequent and severe dust storms. These regionally extensive storms could have …

Natural wonders formed by minerals

E Kotopoulou, S Frisia, AES Van Driessche - Elements, 2025 - pubs.geoscienceworld.org
Mineral nucleation and growth can produce remarkable structures in nature. Unique
examples include the colossal gypsum crystals from Naica (Mexico), the …

Simultaneous analysis of 17O/16O, 18O/16O and 2H/1H of gypsum hydration water by cavity ring‐down laser spectroscopy

F Gázquez, I Mather, J Rolfe, NP Evans… - Rapid …, 2015 - Wiley Online Library
Rationale The recent development of cavity ring‐down laser spectroscopy (CRDS)
instruments capable of measuring 17O‐excess in water has created new opportunities for …

Sedimentary facies, mineralogy, and geochemistry of the sulphate-bearing Miocene Dam Formation in Qatar

HG Dill, R Botz, Z Berner, D Stüben, S Nasir… - Sedimentary …, 2005 - Elsevier
The Miocene deposits of the Dam Formation were deposited in a narrow seaway stretching
along the western edge of the Qatar Arch. During the initial stages of basin evolution the …

Preservation and modification of the isotopic composition (18O/16O and 2H/1H) of structurally-bound hydration water of gypsum (CaSO4· 2H2O) in aqueous solution

F Gázquez, DA Hodell - Geochimica et Cosmochimica Acta, 2022 - Elsevier
Early investigations on stable isotopes (δ 18 O and δD) of structurally-bound gypsum (CaSO
4· 2H 2 O) hydration water (GHW) suggested that soon after gypsum precipitation, its primary …