Home Chalcopyrite – raw mineral – Mexico Cristalljoia CAL.1MB02cx05B18 €6.00 Chalcopyrite - Rough mineral - Mexico 40 years of history Crystals-Rock Shop at the center of Barcelona and onlineChalcopyrite is a disulfide of iron and copper that occurs as crystals or compact masses. It is a yellow or yellowish-green mineral, and its luster is metallic. Chalcopyrite is one of the most important copper ores and is widely used in the... Add to cart
Home Calcite geode Cristalljoia CAG.1G1cx2DD06 €7.00 Calcite geode - Crystallized mineral 40 years of history Crystals-Rock Shop at the center of Barcelona and online Calcite geodes are spherical or sub-spherical structures that form when calcium accumulates inside a cavity in a rock. Calcite it is a common mineral found in a variety of forms in nature, including geodes. The formation process of a calcite... Add to cart
Last items in stock Home Red calcite – raw mineral – Mexico Cristalljoia CAA.1MB06cx05D17 €11.00 Red calcite - Rough mineral - Mexico 40 years of history Crystals-Rock Shop at the center of Barcelona and onlineCalcite is very common and has a wide distribution throughout the planet, it is estimated that approximately 4% by weight of the earth's crust is calcite >.It has a huge variety of shapes and colors. It is characterized by its relatively low... Add to cart
-50% Home Bronzite – raw mineral – Brazil Cristalljoia BRZ.1MBO4cx05B16 €3.00 €6.00 Bronzite - rough mineral - Brazil 40 years of history Crystals-Rock Shop at the center of Barcelona and online The bronzite is an iron ore of the group of orthopyroxenes, a variety of enstatite with some iron, although not as much as hypersthene, belonging together with these two others to the orthorhombic series of the group. In the variety of... Add to cart
Home White opalized agate – raw mineral Cristalljoia Abo.1mbg6e €6.00 Raw mineral opalized white agate 40 years of minerals, Crystals-Rock Shop center of Barcelona and online Agate has been valued since ancient times for its beautiful colors and patterns. In Greek mythology, agate was believed to have healing powers and protect its wearers from lightning strikes and disease. In the Middle Ages, agate was believed to... Add to cart
Home Azurite – crystallized mineral – Morocco Cristalljoia AZM.1MC05cx02D11 €17.00 Azurite; crystallized mineral; Brazil 40 years of history Crystals-Rock Shop at the center of Barcelona and online Azurite is a copper mineral with an intense blue color, formed from the oxidation of copper minerals. Azurite azurite is found in copper deposits and is commonly used in the mining industry to identify the presence of copper ores.<... Add to cart
Home Blue amblygonite – raw mineral – Brazil Cristalljoia AZB.1MB05cx05C14 €23.00 Blue amblygonite; rough mineral; Brazil 40 years of history Crystals-Rock Shop at the center of Barcelona and onlineAmblygonite is a class 8 mineral (phosphate minerals) of the Strunz classification. It was discovered in 1818 in Saxony by August Breithaupt inside pegmatite rocks, in which it was associated with tourmalines and topazes. The name... Add to cart
-50% Home Green aventurine – raw mineral – Brazil Cristalljoia AVV.1MB04cx05C16 €2.00 €4.00 Green aventurine; rough mineral; Brazil 40 years of history Crystals-Rock Shop at the center of Barcelona and onlineGreen aventurine has its color due to inclusions of mica fuchsite, it can also be due to inclusions of actinolite. Green aventurine is native to India and is believed to have been used by the Hindu culture for centuries as a stone healing... Add to cart
Home Pink aragonite – raw mineral – Peru Cristalljoia ARS.1MB01cx05A16 €6.00 Pink aragonite; rough mineral; Brazil 40 years of history Crystals-Rock Shop at the center of Barcelona and online In Spain there are many dozens of deposits, some of which are very important on a global scale.First of all, we must highlight the type locality of the mineral >, located next to the banks of the Gallo River, near Molina de Aragón... Add to cart
Home Sandstone – raw mineral – USA Cristalljoia ARE.1MB02cx05B14 €3.00 Sandstone; rough mineral; EEUU 40 years of history Crystals-Rock Shop at the center of Barcelona and onlineSandstone is a type of sedimentary rock composed mainly of grains of quartz, feldspar, or rock fragments. It is one of the most abundant rocks on Earth (after shales), formed from the erosion of igneous or metamorphic rocks. The texture of... Add to cart
Home Patagonia agate – raw mineral Cristalljoia APT.1M3 €8.00 Raw Patagonia agate mineral 40 years of minerals, Crystals-Rock Shop center of Barcelona and online Agate is not a specific mineral, but rather a group of microcrystalline varieties of quartz (silica). Actually, they are varieties of chalcedony that have bands of various colors that do not contrast well. The difference in colors appears because in... Add to cart
Home Andalusite – crystallized mineral Cristalljoia ANL.1MB03cx05C17 €4.00 Andalusite; crystallized mineral 40 years of history Crystals-Rock Shop at the center of Barcelona and online In 1789, Jacques Louis de Bournon described a mineral from a granite sample from Ipornobert in Forez, which he called "red-violet adamantine feldspar", and considered it a type of feldspar. Later, Jean-Claude Delamétherie (1789) studied some... Add to cart