Dolostone: Dolostone is a sedimentary rock composed primarily of the mineral dolomite, which has a chemical composition of CaMg(CO3)2. Dolomite will effervesce weakly with cold hydrochloric acid, producing a few bubbles. The reaction is more noticeable when the acid is warm and/or the stone is powdered.
Does Gypsum react with HCl?
Gypsum is very soft (softer than a fingernail and so can be scratched by a fingernail). It's color is typically clear or white, but can take on color from impurities, such as pink or yellow. It will not effervesce (fizz) in dilute HCl acid.
Does quartz sandstone react with HCl?
Sandstones are composed of grains of quartz sand. ... The calcite cement will react with hydrochloric acid and those sandstones with calcite cement will display effervescence. Additional possibilities: Additional possibilities: It is possible to use other carbonate minerals and produce the characteristic bubbles.
