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Agate is not really a gemstone, but rather a set of microcrystalline varieties of quartz (silica). Actually, they are varieties of chalcedony which have bands of multiple colors with little contrast. Agate can be found in volcanic rocks whose size can range from very small (only a few millimeters) to several meters.
In our shop we have a large selection of agate geodes.
Discover the agate as a decorative element for your home through these druses and geodes.
Amethyst is a macrocrystalline variety of the quartz crystals. Its violet color, sometimes intense, depends on the amount of iron (Fe+3) it contains. In this case, being amethyst geodes, this crystal is grouped into a cavity. Regarding its color, it may be colored by areas with transparent or yellow quartz. The points of amethysts tend to be darker or degraded to the colorless quartz.
In UniArt you can buy the amethyst druse you like the most at the best price with an excellent quality and beauty.
Citrine is a gemstone of the quartz family, yellow, whose name comes from the Latin word "citrus", lemon. Its color can change from pale yellow to orange tones. This gem has a hardness of seven on the Mohs scale.
The process of formation of the citrine quartz occurs when the violet of the amethyst is so pale that loses its value as a gem. Because of this effect, the use of citrine has become more common. The countries that exploit this procedure to obtain the citrine stone are Uruguay and Brazil.
Natural citrine is hard to find, so to get a similar stone the amethyst is heated. The violet amethyst is considerably more common.
However, we have a wide selection of citrine within the citrine geodes category.
Quartz or crystal rock is a crystal composed of silica (SiO2). After feldspar, it is the most abundant crystal in the earth's crust, being present in large quantities of sedimentary, igneous and metamorphic rocks. Within quartz properties, it is noted for its hardness and resistance to weathering at the Earth's surface.
Therefore, it is very common to use this crystal as a decoration element, for example with a quartz druze.
We have different sizes and shapes, so we invite you to choose the quartz geode you like the most.
We are going to explain the origin of the black tourmaline stone.
The term tourmaline has its origin in the Sinhalese word "touramalli", which means "mixed colored stones", whose name was originally applied to a number of stones, primarily zircons. Also, it is thought that its name may come from the Sinhalese word "Turamali", which means "stone that attracts the ashes," which refers to its pyro-piezoelectric peculiarities.
In our shop we have a wide selection of tourmaline stone, specifically black tourmaline, which is ideal to block both negative energies and bad feelings of the people.
If you love collectable crystals, this category is focused on selling rough mineral specimens for collectors.
We have rainbow quartz, blue quartz, green quartz, rose quartz, hematite, sodalite and kyanite.
All minerals are rough and many of them have cutted-base so that they can be placed standing as in an exhibition.
To see all products of Druses and geodes please visit the subcategories.
In UniArt we have the largest selection of geodes and druses of amethyst, agate, tourmaline, citrine and quartz.
Geodes and druses are a rock cavity, which is normally closed, in which crystals have crystallized displaced by undercurrents. If you break a geode, you will obtain such a beautiful product as we show, becoming spectacular pieces of decoration of great beauty and quality.
Therefore, they are semi precious stones and natural raw crystals.
Enjoy our fantastic selection of druses and geodes:
Semiprecious stones and natural raw crystals.
They are also suitable for Feng Shui decoration. Pieces of great beauty and quality.
The sale of this product is made both retail and wholesale.
»Request the access as a wholesale customer
Prices are shown in retail (including 21% VAT).