C.Jaume I, nº16    "CRISTALL"    Telf.:932-684-452    cmd@cristalljoia.com    08002    Barcelona

In the center of Barcelona, behind the Cathedral, between Via Laietana and Plaza Sant Jaume, (map)

METRO metroL4 Station Jaume I

Open from 10 am a 21 pm, even Sunday

 

bismuto
Bismuth is an element of the periodic table, it is a metal, its symbol is "Bi". Bismuth has been known for centuries, although until the 17th century it was confused with lead, tin and zinc. Formerly it was believed that bismuth was silver that had not yet completed its transformation process. Bismuth was used by the Incas to make sharp elements.

 

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escolecita
Scolecite is a mineral in the class of tectosilicates, that is, they form a three-dimensional structure of tetrahedra. The name scolecite comes from the Greek "skolec" which means worm, by the shape of the flame when burned. It was discovered in 1813 in the Kaiserstuhl, a small mountain range of volcanic origin located in the Rhine valley. It is a very common mineral and there are deposits almost everywhere in the world. It can be found without color, white, pink, salmon, red or green. It is hardness 5-5'5 on the Mohs scale.

 

agata_apricot
Apricot agate is a banded pink chalcedony. It should be remembered that agate is not a specific mineral, they are varieties of chalcedony. The color differences in the bands of the agate sporque in each zone the structure and inclusions are different. The names of the different types of agate are similar to the colors and structures they form.

 

calcedonia_verde
Chalcedony is a silica mineral. It was previously believed to be a variety of quartz. Although recently it has been discovered that it is a mixture of quartz and moganite. The first moganita was discovered in Mogán on the island of Gran Canaria. The name chalcedony comes from the city Chalcedon. Chalcedony was a Greek city currently in Turkish territory. One of the main differences with respect to quartz is that chalcedony forms tiny, and not well developed crystals, this structure is called microcrystalline.

 

dolomita
Dolomite is a mineral that is composed of calcium and magnesium carbonate. You might think that the name of this mineral comes from the Dolomites mountains, but in reality it is in honor of the geologist "Déodat Gratet de Dolomieu" in 1792, although samples are found in these mountains. It is used as a source of magnesium and to manufacture refractory materials. The crystallized specimens of the Eugui quarry in Esteribar (Navarra) are considered among the best in the world.

 

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