"High Energy stones", 20 kilo package with beautiful colorful high energy stones.

Obsidian is a naturally occurring volcanic glass. The name is derived from a Roman named Obsius and an obsidian-like stone was found in Ethiopia in antiquity. Obsidian is created at a rapid cooling of lava with a water content of up to 3-4%. If the content of volatile components (water, carbon dioxide) is higher arises pumice, because the released gases act as a blowing agent. The formation of volcanic glass is highly dependent on the viscosity of the liquid lava and this is in turn strongly influenced by the content of silicic acid. The higher this content, the slower the liquid flows. Most obsidianen have a silica content of 70% or more and, therefore, be counted among the ryolieten. Less often also trachitische, andesitic and fonolithische obsidianen found that a lower silica content. The color of obsidian varies quite widely, depending on the impurities it contains. The color is most dark green to deep black, although granite with a similar composition is a light colored material. Usually the cause of particularly finely divided hematite or magnetite there. Sneeuwvlokobsidiaan contains inclusions of spherical grown structures, most of feldspar or cristobalite, which are called spherulites. They arise from spherical crystal growth from a single central urban growth. Obsidian is a meta-stable material which falls back on the long term, in its crystalline, more stable form. Volcanic glass is not known from the Paleozoic and Precambrian. In the Stone Age was obsidian is a coveted commodity as the razor-sharp cutting edges. It was used for knives and weapons. Today it is a popular material for art objects and is also used as a gemstone in jewelry. It is then cut as if it is a crystal.

Quartz is a form of silicon dioxide, SiO2, and is one of the most common minerals of the earth's crust. It represents more than 12% of the volume of the crust of the earth (inter alia, in granite, sand). Quartz has two modifications: α-quartz is trigonal, β-quartz (a high-temperature form) is hexagonal. In addition, silicon dioxide is still in many other structures such as α- and β-cristobalite, keatiet, tridymite, coesite, stishovite, melangoflogiet and lechatelieriet. Although quartz is composed of silicon dioxide, it is often considered to be the tectosilicates. The reason for this is that quartz is a network of SiO4 tetrahedra. In which each oxygen atom is shared between two silicon atoms. Individual SiO2 molecules come only with gaseous silicon dioxide for. Quartz may be of high purity, such as rock crystal, but often contains impurities. These impurities can include ions, which are incorporated during growth of the crystal in the crystal lattice. Quartz crystals can contain between 13 and 15,000 ppm Al3 +, of between 9 and 1400 ppm of Na +, is between 3 and 300 ppm of K + and traces Fe3 +, Ti4 +, P5 +, H +, and Li +. The aluminum and iron in combination with ionizing radiation are responsible for the color of a quarter of a number of varieties. Further, quartz crystals grow on other minerals, such as at around Rutielkwarts is the case. Quartz crystals can form both large and form microscopic aggregates. The largest quartz crystals occur in Lost Farm in Namibia. Quartz crystals up to 20 meters, and possibly 50 meters, and up to 2 meters dolomietkristallen come here for. When quartz is melted, it forms a glass when cooled rapidly, many times, because the crystallization process takes quite a lot of time. Quartz is a piezoelectric material, and the vibrations which can induce in the lattice of the crystal are used in electronic equipment such as quartz clocks and radios.