FANDOM


Hydromagnesite
Hydromagnesite is a hydrated magnesium carbonate mineral with the formula: Mg5(CO3)4(OH)2.4H2O.

It generally occurs associated with the weathering products of magnesium containing minerals such as serpentine or brucite. It occurs as incrustations and vein or fracture fillings in ultramafic rocks and serpentinites.

CharacteristicsEdit

It occurs in hydrothermally altered dolomite and marble. It commonly appears in caves as speleothems and "moonmilk", deposited from water that has seeped through magnesium rich rocks. It is the most common cave carbonate after calcite and aragonite. It thermally decomposes, over a temperature range of approximately 220°C to 750°C, releasing water and carbon dioxide leaving a magnesium oxide residue.

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.