|Color||usually colorless, but also in weak colours.|
|Habitat||Occurs as a pseudomorph after gypsum and calcite. Aragonite is usually deposited from hot solutions, calcite from cold. Aragonite is often found in cracks and cavities, with iron ores, in hot springs and geysers.|
|Associates||zeolites, siderite, gypsum, sulfur and celestite.|
|Notes||Reacts violently with hydrochloric acid, but not as violent as calcite. Fluorescent with bluewhite light.|
|Locations||A common mineral but unusual in Sweden. Best locations in the Värmländska mangan mines. In Långban as needle crystals or as crusts in holes.|
| To carbonates index.
|| Mineral group index.
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