Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Isolation of Aerobic Heterotrophic Bacteria from a Microbial Mat with the Ability to Grow on and Remove Hexavalent Chromium through Biosorption and Bioreduction.

Applied biochemistry and biotechnology·2024

Same author

Estimating environmental impacts of early-stage bioprocesses.

Trends in biotechnology·2023

Same author

Bioremediation of copper using indigenous fungi Aspergillus species isolated from an abandoned copper mine soil.

Chemosphere·2022

Same author

Phytoremediation potential of castor (Ricinus communis L.) in the soils of the abandoned copper mine in Northern Oman: implications for arid regions.

Environmental science and pollution research international·2020

Same author

The Role of Microbial Mats in the Removal of Hexavalent Chromium and Associated Shifts in Their Bacterial Community Composition.

Frontiers in microbiology·2020

Same author

Raman spectroscopic characterization of a synthetic, non-stoichiometric Cu-Ba uranyl phosphate.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2013

Search research articles

Related Experiment Video

Updated: Dec 22, 2025

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

Challenges to rutile-based geoscientific tools: low-temperature polymorphic TiO₂ transformations and corresponding

André Jorge Pinto¹, Nuria Sanchez-Pastor², Ivan Callegari³

¹Applied Geology Department, German University of Technology in Oman, P.O. Box 1816, PC 130, Athaiba, Sultanate of Oman. andrefilipe.pinto@gutech.edu.om.

Scientific Reports

|May 6, 2020

Summary

This study reveals that niobium (Nb) stabilizes anatase TiO2 over rutile in hydrothermal environments, challenging traditional geochemical tools. It uncovers a rutile-to-anatase conversion pathway in Omani volcaniclastic rocks.

More Related Videos

An Experimental Protocol for Studying Mineral Effects on Organic Hydrothermal Transformations

An Experimental Protocol for Studying Mineral Effects on Organic Hydrothermal Transformations

Published on: August 8, 2018

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope

Published on: July 24, 2021

Related Experiment Videos

Last Updated: Dec 22, 2025

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

An Experimental Protocol for Studying Mineral Effects on Organic Hydrothermal Transformations

An Experimental Protocol for Studying Mineral Effects on Organic Hydrothermal Transformations

Published on: August 8, 2018

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope

Published on: July 24, 2021

Area of Science:

Geochemistry
Mineralogy
Petrology

Background:

Rutile, the stable TiO2 polymorph, is crucial for understanding geological processes.
Trace element composition in rutile aids in fingerprinting magmatic evolution and metamorphism.
Rutile-based tools are widely used in geochemistry and thermometry.

Purpose of the Study:

Identify TiO2 polymorphs in Omani volcaniclastic rocks.
Evaluate trace element contents and hydrothermal alteration effects.
Analyze mineral reactive pathways and textural relationships.

Main Methods:

Raman spectroscopy for TiO2 polymorph identification.
Electron Microprobe (EMP) analysis for trace element quantification.
Petrographic observations for textural analysis.

Main Results:

Interstitial TiO2 identified as anatase; rutile found as isolated grains.
Niobium (Nb) enrichment in anatase correlates with Nb depletion in rutile.
A coupled dissolution-precipitation reaction facilitates rutile-to-anatase conversion.

Conclusions:

Nb stabilizes anatase in lower-temperature aqueous environments.
Rutile likely originates from magmatic sources; anatase forms hydrothermally.
Findings question the universal applicability of rutile-based geochemical and thermometric tools.