THE LECTURES

Program 2017

All these lectures will be held in the CIAP building, 2nd floor, located in the yard of the Val d’Argent Expo (Mineral Zone).

  • Lectures on Thursday, June 22, 2017

SUBMARINE VOLCANISM: OCEANIC RIDGES AND HOT SPOTS

Logo> By Eric de Carlo, Doctor in marine geology and geochemistry
> Language: French
> Schedule: Thursday at 11 am
> Duration: 1h

Illustration_Conf_ParodiAll geologists and oceanographers learn during their study that the surface of our planet is covered with tectonic plates. The margins of these plates interact with each other and are responsible for the volcanic activities that occur on Earth. But what happens besides the eruptions we can observe? The subject of this conference will be the study of underwater volcanic systems, oceanic ridges and hot spots. We will take you to the ridge of the East Pacific, at 2,500 m. of depth, through the portholes of Alvin and Pisces V. Thus, you will understand the formation of marine crust and archipelagos created by hot spots in the Hawaiian area, followed by a description of the mineralogical formation of black fumaroles and other hydrothermal minerals.


THE CRYSTALS: 2,500 YEARS OF SCIENCE HISTORY

> By Bertrand Devouard, Mineralogist and President of the French Society of Mineralogy and Crystallography
Illustration_Conf_Parodi> Language: French
> Schedule: Thursday at 1:30 pm
> Duration: 1h

Why are crystals so beautiful and so diverse? Why do they show these geometric shapes that delight us? For answering these questions, philosophers and scientists, since at least the Greek antiquity have gradually deciphered the mysteries of nature to understand the organization of matter in crystals and their properties, in order to synthesize them. Having developed well beyond minerals, crystallography is today an essential science in our technological society because many applications are based on the mastery of synthetic crystals.


CRYSTAL: EMERGENCE OF SYMMETRIES

> By Jean-Luc Jacquot, Doctor of Physics and Sciences
Illustration_Conf_Parodi> Language: French
> Schedule: Thursday at 3 pm
> Duration: 1h

The color of minerals, their brilliance, their transparency, and their geometrical forms attracted the attention of mankind since the most ancient ages. At a microscopic level, their remarkable visual characteristics, or in general their physical properties, can be explained by the fact that the atoms belonging to the chemical composition of a given mineral, are ordered in a repetitive pattern with a greater or lesser degree of symmetry. Lower: the crystal lattice. For a mineral, even a gem, these spatial symmetries are not exact because of the structural defects or impurities that the mineral contains. At a macroscopic level, the emergence of these approximated symmetries results in, for the greatest pleasure of our eyes, colors of gems (sapphire, ruby, etc.) or beautiful effects such as the change of color in alexandrite.
You will also see that the notion of symmetry, which is reflected in particular in the diversity of crystalline shapes of minerals, has emerged to be fundamental for the understanding of our universe.


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  • Lectures on Friday, June 23, 2017

THE MINE OF MÉSAGE AND ITS MINERALOGY

> By Grégoire De Bodinat, crystal hunter
Illustration_Conférence_Tourmaline_TourmalineduBrésil> Language: French
> Schedule: Friday at 11 am
Duration: 1h

The Mésage mine is a former ore mine operated for iron in 1800-1870, near Vizille, in the department of Isère. It was renowned at that time for the minerals that were found there, particularly the pyrites. After its closure, the mine was gradually forgotten and its galleries closed. It is only since the 1990s that crystal hunters have shown some renewed interest and made exceptional discoveries, including samples of siderites, quartz, and world class pyrites. Since 2009, the mine has been exploited for crystals in a professional manner, and mine visits are being organized starting this year.
This conference traces the history of the mineralogy of this mine and the epic of the discoveries which have succeeded since the nineties. It also shows the means used for a reasoned exploitation of minerals resources. Many photos and videos enhance the presentation.


SYMPOSIUM

Logo> By 4 specialized speakers
Language: French (and English)
> Schedule: Friday at 3 pm
Duration: ≈ 1 ½ hour
Bandeau site internet_FR> Reservation (compulsory) HERE (capacity: 50 seats)

For the 3rd consecutive year, Mineral & Gem offers a free event open to everyone. Focused on scientific information, this meeting of experts and professionals is a unique opportunity to promote and discuss various topics.

Once again this year we are very pleased to receive four speakers who participate in this meeting for presenting their works concerning the following topics:
- From the treasure of the Great Moghols to the extravagances of the Maharadjahs, Capucine Juncker, gemologist and journalist at propertyofalady.fr,
- From Cabinets of curiosities to Museums; From collections to modern science, Cristiano Ferraris, curator at the National Museum of natural history in Paris,
- Sir Arthur Russell’s collection at the Museum of Natural History in London, Mike Rumsey, curator at the Museum of Natural History in London,
- Minerals and volcanoes, Bertrand Devouard, president of the French Society of Mineralogy and Crystallography.

Only the lecture of Mike Rumsey will be in English, all the other will be in French.
More information HERE


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  • Lectures on Saturday, June 24, 2017 

THE SAINT-LOUIS MINE, 30 YEARS OF SHARED PASSION

> By Pierre Fluck, geologist and doctor in sciences
Illustration_Conférence_Jade> Language: French
> Schedule: Saturday at 11am
> Duration: 1h

Opened in 1549, the Saint Louis-Eisenthür silver mine was one of the richest in Sainte-Marie-aux-Mines. Its rediscovery in the seventies was an extraordinary adventure.
Pierre Fluck, walking encyclopedia and founding member of the ASEPAM (Speleological Association for the Study and Protection of Ancient Mines), will take you on a journey through the history of the Saint Louis-Eisenthür mine and its rediscovery with a virtual visit of the mine and unpublished archival documents.


FROM EARTH TO JEWEL

> By Éloïse Gaillou, assistant curator at the MINES ParisTech, Mineralogy Museum
Le Diamant Hope  ancien diamant Bleu de France de Louis XVI retaillé après son vol pendant la révolution Française. Crédit  Smithonsian Institution. Photo  E. Gaillou> Language: French
> Schedule: Saturday at 1.30 pm
> Duration: 1h

The exhibition ‘Illuminations – from the Earth to the Jewel’ presents original jewelry created by  the American artist Paula Crevoshay and raw minerals from the Mineralogy Museum collection. This exhibition gives the opportunity to approach major topics, from the extraction of raw minerals to the finished product, the jewel.
Since the dawn of time, minerals have fascinated mankind. Emeralds have been used for millennia, as reported by Pliny the Elder or Herodotus; the only known deposit until the 16th century was in Egypt, near the Dead Sea. On the contrary, zoisite is a recent gemstone, discovered in 1967 in Tanzania and brought up to date by Tiffany & Co., which baptizes its blue variety zoisite. Each gem – and thus each mineral – derives from various geological processes and periods. This presentation will deal with classical gems, but also those that are less talked about, such as chrysoberyl or kunzite. The jewels created by Paula Crevoshay, inspired by nature, enable the discovery of these unusual gems and highlight them.
© Tourmaline, Composition Mines ParisTech and Paula Crevoshay


THE DISCRETE SEDUCTION OF BLACK GEMS

> By Isabelle Reyjal, gemologist
VisuelConférence2> Language: French
> Schedule: Saturday at 3 pm
> Duration: 1h

Black colored gemstones always had a special place in the history of adornment. From the engraved onyx of the antiquity to the black diamonds of present jewelers, black ornamental items cause in the various cultures a mixture of fascination and repulsion. Mirrors of obsidian of the Mayas, mourning jet jewelry of the nineteenth century, croisettes of Brittany, mysterious stars of Digne, lava stone cameos, black gems are multiple; their use is always charged with symbols.
Today, black color has regained its reputation in fashion, and many dark gems with intimate beauty, almost unknown among the general public, deserve to be discovered for their physical and optical properties and to be worn in contemporary jewels masculine as well as feminine for the touch of sobriety and elegance they bring to all clothing.


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  • Lectures on Sunday, June 25, 2017

THE DEMANTOID GARNET: A PRECIOUS GREEN GEMSTONE

> By Pierre-Yves Chatagnier & David Goubert, gemologists (Gem-A, DUG) and gemstone dealers
Musée des Confluences Lyon France> Language: French
> Schedule: Sunday at 11 am
> Duration: 1h

In the garnet family, the demantoid, a green garnet, is the rarest. Discovered nearly 150 years ago, its low production makes it a gem almost unknown among the general public. The word garnet is too often associated only with the red color. Few people are aware of the great diversity of color offered by the garnet family, especially the green color. Remaining too often only for amateurs informed about gems or for the prestigious jewelry houses, the demantoid is however available for the greater number. This presentation offers you to discover the history of this exceptional gem, its mineralogical and gemological properties, as well as the human adventure allowing its production, from Russia to Madagascar through Namibia and Iran.


A LIFELONG PASSION FOR ‘PEEBLES’

> By Alain Carion, expert and meteorite dealer
Carion_Illustration_Sainte-Marie-aux-Mines_1972> Language: French
> Schedule: Sunday at 1.30 pm
> Durée : 1h

At the age of 5, Alain Carion picked up his first ‘pebble’, as he commonly calls them. This moment marks the beginning of a long adventure. At the age of 12, he sold his first fossil at Boubée’s, Place Saint-André-des-Arts in Paris, and he opened his first shop at 18! This conference will take you on the tracks of his history and you will discover the many epics that it has lived. Today, Alain Carion is one of the oldest faithful fans of Mineral & Gem!


THE PEARLS OF THE VOLOGNE RIVER

> By Marie Chabrol, gemologist and independent journalist for Le Gemmologue
Illustration_Conférence> Language: French
> Schedule: Sunday at 3 pm
> Duration: 1h

The pearls of the Vologne were the pride of the Dukes of Lorraine but today they have fallen into oblivion. However, the Vologne and its tributaries were scrutinized for this richness which made many stylish women happy. The gemologist and journalist Marie Chabrol offers to rediscover it!