SPECIAL OFFER From Saturday 20 June to Tuesday 30 June, 20% off a wide selection of minerals in the ‘Discounted products’ section 🤩

PROMO CODE -10% : "PATIENCE" We will be away from home from June 19th to July 3rd included. Meet us at the swimming-pool, booth ZM-PI-15 :) ⚠️ Any orders placed on the site during this period will be processed when we will be back. 🙏 We are therefore offering you a 10% discount on ALL THE WEBSITE (including promotional products), with the code 👉 PATIENCE 👈 to be entered when finalising your order :)

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LAST DAYS TO ORDER Join us at the Sainte-Marie-aux-Mines mineral & gem show, booth ZM-PI-15 from June 24 to 28! Orders placed up to and including June 15 can be shipped before we leave 👍 The website will, of course, remain open while we are away; orders will be processed upon our return in early July.

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Valid from Tuesday 07/10/2025 - 08 am (French time) to Sunday 12/10/2025 - 11h59 pm (French time), for immediate orders (no reservations).
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Gypsum - Arignac, Ariège, France

A particularly transparent gypsum crystal with well-developed faces and a clean termination. Its excellent clarity highlights the fine growth striations characteristic of the species, while its natural setting is accompanied by secondary crystals that add texture to the overall appearance. This specimen comes from Arignac, in Ariège, a French locality renowned for the quality of its gypsum crystals.

3.6 x 2 x 0.4 cm

Highlights of this specimen:

- A well-defined and elegantly developed main crystal.
- Beautiful transparency
- Brilliant faces displaying the growth striations typical of gypsum.
- Presence of secondary crystals that add volume and a beautiful balance to the specimen.

For your information:

Gypsum is a hydrated calcium sulfate (CaSO₄·2H₂O) that crystallizes in the monoclinic system. It is prized by collectors for the diversity of its crystalline forms, ranging from transparent crystals like this one to “spearhead” twinned crystals and the famous “desert roses.”

The town of Arignac, located near Tarascon-sur-Ariège, has long been known for its extensive gypsum deposits formed during the Triassic period. These deposits have supported mining operations for the production of plaster, while also yielding beautiful mineralogical specimens (gypsum, dravite, pyrite, etc.). The transparent crystals from this locality are among the classics of French mineral collections.