Aragonite for sale: natural specimens and collector minerals
The aragonite specimens offered on Le Monde Minéral are collector minerals available for sale, presented with photos and a video to allow a precise observation before purchase. The available pieces may vary by provenance, colour, overall shape, size and presentation, either on matrix or as individual specimens.
The aragonite specimens available for purchase are presented further down this page.
Aragonite is a calcium carbonate mineral, with the chemical formula CaCO₃, like calcite, but with a different crystal structure. It belongs to the orthorhombic crystal system and has a hardness of about 3.5 to 4 on the Mohs scale. Its formation is linked to carbonate precipitation conditions, which explains the variety of forms observed depending on the deposit: individual crystals, pale aggregates, compact pieces or specimens associated with a mineral matrix.
Choosing aragonite for a collection
When buying an aragonite specimen, it is useful to first observe the overall appearance of the piece. Some specimens stand out for the readability of their crystals, others for their colour, volume, provenance or presentation on matrix. The choice is therefore based on concrete criteria: visible crystallisation, general condition, format, colour and overall coherence.
Aragonite colour can range from white to beige, with grey, brown, honey, orange or greenish shades depending on the piece. To compare several aragonite specimens, it is useful to look at the regularity of the colour, the condition of the piece, the sharpness of the crystallised areas and the way the mineral stands out from its support when present on matrix.
Provenance and reading aragonite specimens
The aragonite specimens presented in our catalogue come from different localities, including France, Spain, Germany and Mexico depending on the piece. This diversity makes it possible to compare quite different specimens without establishing a fixed hierarchy between provenances.
