Mirabilia Naturalia

W. 71 - D. 71 - H. 74 Cm

Ferrous meteorite, made up for the most part of an iron and nickel alloy.

kg 18,3 W. 25 - H. 24 Cm

A brass mechanism created to launch a siderite, which is a meteorite containing iron.

gr 10 W. 12 - D. 8 - H. 37 Cm

Sandstone concretion of pure siliceous sand, two gogottes H 14 cm and one H 13 cm including base

Sandstone concretion of pure siliceous sand, H 18 cm and H 15 cm including base

Amethysts varying in size, H 14 cm and 12 cm including base. Amethyst is a violet variety of quartz, often combined with subalkaline basaltic rocks.

Opaque and colourful variety of quartz.

H. 25 Cm

Rhodonite mineral on a metal base. The massive mineral is flesh-pink in colour with black speckles due to the presence of manganese hydrated oxides.

H. 31 Cm

Dendritic agate, a variety of calchedony, on a metal base

H. 25 Cm

This "speckled stone" is a sedimentary monomineralic rock, meaning that it is formed of only one mineral, that is made up of quartz and often includes impurities.

H. 16 Cm

A medium-sized labradorite on a black base. It is a variety of anortite with colours ranging from green to blue, used in jewelry-making.

H. 18 Cm

A medium-sized labradorite on a black base. It is a variety of anortite with colours ranging from green to blue, used in jewelry-making.

W. 12 - H. 11 Cm

Septaria on a black metal base. A concretion of marly or argillaceous limestones containing angular cavities or cracks. These cracks (septaria) can be radiating or concentric and are often filled by the cementation of calcite and barite crystals.

H. 31 Cm

A block of lapis on a metal base

H. 24 Cm

H. 23 Cm

H. 13 Cm

H. 32 Cm

Polished malachite (irregular mineral)

kg 23 W. 46 - D. 27 - H. 10 Cm

Tabajaran mine, on a Corten base

W. 46 - H. 52 cm

A slice of Brasilian agate with iridescent blueish colours covered in red haematite with a double crystal heart

W. 27 - D. 7,5 - H. 20 Cm

Formed from a stalagmite that was created inside a cavity rich in copper minerals, that give it its look and colours.

This dark, blue-green piece comes from a South African mineral: Tiger eye.

W. 12 - D. 12 - H. 52,5 Cm

A slice of red jasper from an area that is rich in iron oxide.

kg 1,8 W. 27 - D. 12 - H. 42 Cm

Tabajaran mine on a Corten base. Agate, a variety of calchedony, has a typical zoned structure that is visible to the naked eye thanks to the differences in colour.

W. 32 - D. 11 - H. 61 Cm

A series of 7 agate slices on cubical brass stands. Together, they recreate the patterns of this Brasilian stone.

W. 9,5 - D. 18 - H. 13 Cm

Tabajaran mine, agate with a hole in the centre, on a Corten base

W. 20 - D. 25 - H. 55 Cm

Rock crystal, also known as hyaline quartz, is the "ultimate" crystal: clear and transparent, able to break down white light into the colours of the rainbow.

W. 43 - D. 30 - H. 14 Cm

Characterised by large crystals varying in colour from almost-clear white (at the roots) to purple at the tips of the crystals.

W. 30 - D. 34 - H. 16 Cm

Amethyst is a stone in the macrocrystalline quartz group. The largest extractions are made in Brasil.

W. 22 - D. 21 - H. 24 Cm

Three cubical pyrite crystals from the famous mines in Spain. Pyrite is a mineral made up of iron disulfide, with a yellow-gold colour and a metallic shine.

W. 12,5 - D. 8,5 - H. 16 Cm

A sedimentary formation that is common in desert areas. Its colours range from orange to ochre yellow and it is a cluster of gypsum crystals that is formed under very specific environmental and climatic conditions. This specimen is particularly large. [..]

W. 50 - D. 42 - H. 23 Cm

Interlocking cubes, easily extracted from the Marna basin where they were formed 130 million years ago. The cubes in this extraordinary specimen are particularly large.

W. 21 - D. 15 - H. 27 Cm

A tree branch that fell on the banks of the lake during the winter. Australia's many lakes are rich in sulphates, which create the perfect conditions for the cristallisation and formation of alites, gypsum and alunites.

W. 34 - D. 34 - H. 48 Cm

Originating from a single cristallisation, extraordinary in size.

W. 25 - D. 25 - H. 39,5 Cm

A beautiful purple octahedron in the shape of a double pyramid. This cristallisation is made in the lab through the evaporation of alum and chrome.

W. 21 - D. 15 - H. 27,5 Cm

H. 9 Cm

W. 10 Cm

Smoky rock crystal

W. 26,5 - H. 16 cm

Rock crystal or hyaline quartz has a clear, ferrous colour with many inclusions.

W. 21 - H. 15,5 cm

Rock crystal bowls

W. 11 cm

A copper carbonate mineral that can take on many shades of green. The ashtray is in good conditions.

W. 17 - D. 17 - H. 16 Cm

Good conditions, with a peculiar shape and the typical colours of this mineral

H. 21 Cm

A monomineralic sedimentary rock, composed of quartz and often including impurities, usually of iron compounds that give the rock its bright colours.

H. 39 cm

kg 13,9 W. 38 - D. 34 - H. 17 Cm

kg 12,18 W. 36 - D. 33 - H. 16 Cm

Quartz on a wood and brass base

W. 31 - H. 27 Cm

W. 20 - D. 18 Cm

Cloudy alabaster with red coral details

W. 20 - D. 8 - H. 3 Cm

W. 19 - H. 7 Cm

W. 19 - D. 15,7 - H. 5 Cm

Silver bowl with amber knobs

W. 20 - D. 5,5 - H. 7 Cm

W. 13 - H. 4,6 Cm

W. 4,5 - H. 13 Cm

W. 29 - D. 18,5 - H. 6,5 Cm

W. 11,5 - D. 10 - H. 4 Cm

W. 10,5 - D. 20,5 - H. 3,5 Cm

W. 10,5 - D. 20,5 - H. 3 Cm

W. 10,5 - D. 20,5 - H. 3,5 Cm

W. 10,5 - D. 20,5 - H. 3,5 Cm

W. 10,5 - D. 20,5 - H. 3,5 Cm