Assertion: carbonate's form | /r/HasProperty | mineral
Facets:
Source sentences:
text: Sodium carbonate occurs naturally in mineral form as its hydrate salts (such as trona, natron, natrite, etc.).
text: Aragonite is a carbonate mineral, one of the three most common naturally occurring crystal forms of calcium carbonate, Ca C O 3 (the other forms being the minerals calcite and vaterite).