Add products to the DISCOUNTED PRODUCTS section From Tuesday, October 28 at 2:30 p.m. to Monday, November 3, 2025 at 11:59 p.m., 30% off a selection of around 100 products 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 :)

-15% OFF ON THE WHOLE SITE for Mother's Day Weekend 😊 This weekend we're offering a 15% discount valid on ALL THE SITE, no code to enter, the discount is automatic! 👉 Promotion valid from May 24, 2024 6:30 pm (French time) to Sunday, May 26, 2024 11:59 pm (French time). ⚠️ Loyalty points cannot be collected during this promotional period.

LAST DAYS TO ORDER Join us at the Sainte-Marie-aux-Mines mineral & gem show, booth ZM-PI-15 from June 25 to 29! Orders placed up to and including June 18 can be shipped before we leave 👍

FLASH PROMO off the entire site*

* Excluding new products and already discounted products

Valid from Tuesday 07/10/2025 - 08 am (French time) to Sunday 12/10/2025 - 11h59 pm (French time), for immediate orders (no reservations).
Cannot be combined with the loyalty program.

Hurry, only :

Day

Hours

Minutes

left until the end of the promotion :)

SOLD

Prehnite and byssolite - Combe de La Selle, Isère, France

A locality that has produced some of France's finest prehnites! Here the byssolite is not developed, but the prehnites are brilliant and in very good condition.

4,5 x 3,5 x 2 cm.