![]() Obsidian has a glassy lustre and is slightly harder than window glass. Obsidian is extremely rich in silica (about 65 to 80 percent), is low in water, and has a chemical composition similar to rhyolite. However, the fragile nature of obsidian reduces its use in surgeries to a limited area. obsidian, igneous rock occurring as a natural glass formed by the rapid cooling of viscous lava from volcanoes. Hobbyists will occasionally facet these pieces. Igneous Igneous rocks are formed when magma (molten rock deep within the earth) cools and hardens. Today, obsidian is still used in making surgical tools as it is superior to steel regarding its evenness. obsidians are quite rare, as are green, blue, and reddish colors. Examples of this rock type include gneiss and marble. How and when our ancestors dealt with obsidian as well as in which directions its commerce took place among various communities are some of the questions that archaeologists ask when they encounter this material on ancient sites. Through certain analyses, the obsidian finds can reveal where their raw material was exploited and when they were produced. There are a variety of obsidian types: Plesk obsidian Mahogany obsidian Snowflake obsidian Rainbow obsidian Apache Tears Obsidian glass can display two types of gemstone phenomena: chatoyancy and iridescence. As the exploitation, manufacture, and trade of obsidian existed in many parts of the world from very early on, it plays an important role in understanding the human past. For shale, it specifically forms from a muddy mixture of clay minerals (like kaolinite, montmorillonite. In addition, it was used to make mirrors and decorative objects. These pre-existing rocks can be igneous, metamorphic or even other sedimentary rocks. 1: This tuff has crystals, rock fragments, and bedrock mixed together. Obsidian as a glassy rock shows an excellent example of conchoidal fracture similar to the mineral quartz (see Chapter 3 ). It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth 1.2 History 1.2.1 Origin Ethiopia 1.2.2 Discoverer Obsius 1.3 Etymology From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius 1. Obsidian is a rock consisting of volcanic glass. ![]() It was because obsidian is perfect for making sharp tools such as blades, arrowheads, and scalpels. Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. These rocks include: andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria, and tuff. It repels negativity and disperses unloving thoughts.As humans, we fell in love with this raw material from the very early ages which goes back as old as Lower Paleolithic (ca. Black Obsidian is protective and provides support during change. Releases imbalances and negative energies. In addition to the generic healing properties of Obsidian, specific colours and types have additional attributes: Black Obsidianīlack Obsidian is a very powerful and creative stone. Yet sometimes what seems black in ordinary lighting is actually holding a secret world of color and sheen within. Unlike most crystals, it has a natural glassy quality that makes it shiny. It reduces arthritis pain, joint problems and cramps. It is the result of magma hardening after a volcano erupts. Obsidian aids the digestion and detoxifies. Promotes qualities of compassion and strength. Obsidian dissolves emotional blockages and ancient traumas. Brings clarity to the mind and clears confusion. It stimulates growth on all levels, urging exploration of the unknown and opening new horizons. Obsidian draws out mental stress and tension. It blocks psychic attack and absorbs negative energies from the environment. A strongly protective stone, it forms a shield against negativity. ♥ Purification ♥ Transformation ♥ Fulfilment ♥ Metamorphoses ♥ Manifestation ♥ Practicality ♥ Psychic ability Shop - Obsidian Jewellery & Gifts Healing with Obsidian Typical colours - Black, silvery or brown
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