Skip to content
Mineralati

Minerals

Hydrotalcite

hydrotalcite

Mg6Al2(CO3)(OH)16 * 4H2O

Hydrotalcite: Mineral information, data and localities.

Hydrotalcite: Mineral information, data and localities. — via zh.mindat.org · Source

Overview

Hydrotalcite, or formerly also völknerite, is a layered double hydroxide (LDH) of general formula Mg6Al2CO3(OH)16·4H2O, whose name is derived from its resemblance with talc and its high water content. Multiple structures containing loosely bound carbonate (CO2−3) ions exist. The easily exchangeable carbonates enable applications of the mineral in wastewater treatment and the immobilisation of radioactive waste after nuclear fuel reprocessing.

Identification characteristics

  • Mohs hardness 2

Scientific references

  1. Hydrotalcite — Wikidata. https://www.wikidata.org/wiki/Q167525 Link
  2. Hydrotalcite — Wikipedia. https://en.wikipedia.org/wiki/Hydrotalcite Link