Riesite, a New High Pressure Polymorph of TiO2 from the Ries Impact Structure

Document Type

Article

Publication Date

1-18-2020

Publication Title

Minerals

Volume

10

Issue

1

First page number:

1

Last page number:

8

Abstract

This paper describes riesite, a new high-pressure polymorph of TiO2 from the Ries impact structure, Germany. Riesite occurs in shock-induced melt veins within xenoliths of bedrock in suevite. It is structurally closely related to srilankite from which it differs by having two distinct cation sites rather than one and through its monoclinic symmetry. It is indicative that riesite forms only upon release from the shock state upon back transformation from akaogiite.

Keywords

High-pressure mineral; High pressure; Mineral physics; Impacts

Disciplines

Mineral Physics

Language

English

UNLV article access

Search your library

Share

COinS