Tags: Chemical Substance, Mineral.
Gaylussite is a carbonate mineral a hydrated sodium calcium carbonate formula Na2Ca(CO3)2·5H2O. It occurs as translucent vitreous white to grey to yellow monoclinic prismatic crystals. It is an unstable mineral which dehydrates in dry air and decomposes in water.It is formed as an evaporite from alkali lacustrine waters. It also occurs rarely as veinlets in alkalic igneous rocks.It was first described in 1826 for an occurrence in Lagunilla Zulia Venezuela.
