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About Us

SZ Minéraux, A story, A lot of passions

Her and Him and More...

We are Cédric and Mathilde, SZ-Mineraux .

Cédric, 38 years old, passionate about fossils and minerals since my earliest childhood when I went to look for fossils in the fields with my father and my friends. I completed my studies in two stages: mechanical engineering first, then Geosciences on Nancy. I combined these two specialties to create my company for the sale of collectible minerals and custom base.

Mathilde, 33, at the bank advisor base, I decided to devote myself 100% to the company since September 2019. For the last 15 years, I have been participating in trade shows, sales, online marketing, bases, etc. Two full-time jobs.

But with the arrival of our little Trystan, we had to make a choice and he naturally turned to mineralogy.

We have been together for 15 years and share the same passion. We started selling 14 years ago through a self-starting company; and we have evolved to the status of SARL 7 years ago because we realize in addition to the sale of collection minerals of customized bases. Indeed, to allow an optimal enhancement of your specimens, we realize bases where there is no need for glue or adhesive paste to hold your piece.

You can find us on the world’s biggest stock exchanges (when they can resume!): Tucson, Munich, Sainte-Marie-aux-Mines. And in various in France or abroad: Paris Charenton and Marriott, Lyon, Millau, Switzerland, Germany, etc.

Since 2022, we organize the International Minerals show of Minerals, Fossils and Jewellery in Paris Charenton, which takes place on the first weekend in December at Espace Charenton - Paris 12

We organize the International Mineral show Mineral Expo Paris which takes place every year on the first weekend of December.

The fair in a few figures:

50th edition
Nearly 200 exhibitors
More than 20 countries represented
2000 m² of exhibition
More than 5000 visitors expected

Address : ESPACE CHARENTON - 327, rue de Charenton - 75012 PARIS

Don't hesitate to contact us for more informations.

Complementary Activities

Our company is the perfect balance between my engineering studies represented by the creation of custom acrylic bases, and Geology by the sale of collectible minerals.

Large Choice

With a long experience in the sale of collectible minerals, we are able to bring you through our various contacts the piece you are looking for.
You can also find us at the largest national and international fairs.

custom bases

To highlight your most beautiful pieces


Our job is to highlight your specimens with a base specially designed for them.
Our bases are made of PMMA (acrylic glass) in Europe and anti-UV treatment to prevent yellowing. This high-quality acrylic glass is polished with diamond in France to achieve incredible transparency.
We can currently make your bases in transparent, black, white or brushed PMMA (other colors available on request).
We can add a text engraved on the front of the base, painted or not, in black, white or white reacting to UV.

We guarantee the bases, our work ranges from imprint to adjustment once the base is finished.

We work for collectors and professionals, as well as for museums.


It all starts with the foam impression in a specially designed foam kit. We no longer need your specimen after taking the print, so there is no risk of breakage or loss when sending the base, and you keep your specimen at home.

For a first experience, we advise you to make foam impression with us, either by appointment or on a show.

For more informations, contact us directly by email or phone.

Sizes and prices

We can make very small bases: 20x20x10 mm, to very large (more than 60 cm in length).
Several thicknesses are available: 10 mm, 20 mm, 25 mm, 30 mm, 40 mm, 50mm, 70 mm and 100 mm.
We realize square, rectangular, or round bases; with or without chamfers. For other forms, contact us.

Prices from 15,00€ TTC, contact us for a quote.

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Our Offers


Worldwide shipping with maximum safety in the packaging.
Insurance included with each shipment!

Custom bases

Discounts on custom bases from 10 bases in the same command :
5% off from 10 bases
10% off from 25 bases
15% off from 50 bases
20% off from 70 bases
Make your base from only 15€ !


We can search for you the specimen that would please you.
Don’t hesitate to contact us to request it.

Collection purchase

We also buy collections.
Don’t hesitate to contact us so that we can discuss them together.

Send us a message

Informations ? Quote ? Specific project ? Want to say hello ?

Contact information

We are able to bring you through our various contacts the piece you are looking for.


3 Rue de la Villette, 90200 Auxelles-Bas



number +336 73 46 66 00

© 2020 SZ Minéraux.Designed and built by LBF