OBSIDIAN STONE TURTLE INLAID OF ABALONE SHELL & BLUE STONE NEW.

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Obsidian healing power : Golden Obsidian. For protection and invigorating. - Green Obsidian. Use with other stones to heal and charge them if they have been misused. - Rainbow Obsidian. Contains the essence of the joy of life in all the colors. - Mahogany Obsidian. Reduces tension especially if stroked. - Snowflake Obsidian. Use for astral travel and clairaudience, absorbs negative energy and therefore is used to cleanse before crystal healing. Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock . It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. Obsidian is commonly found within the margins of rhyolitic lava flows known as obsidian flows , where the chemical composition (high silica content) induces a high viscosity and polymerization degree of the lava. The inhibition of atomic diffusion through this highly viscous and polymerized lava explains the lack of crystal growth. Obsidian is hard and brittle; it therefore fractures with very sharp edges, which had been used in the past in cutting and piercing tools, and are still used as surgical scalpel blades. [4 ] Obsidian is mineral -like, but not a true mineral because as a glass it is not crystalline ; in addition, its composition is too complex to comprise a single mineral. It is sometimes classified as a mineraloid . Though obsidian is usually dark in color similar to mafic rocks such as basalt , obsidian's composition is extremely felsic . Obsidian consists mainly of SiO 2 ( silicon dioxide ), usually 70% or more. Crystalline rocks with obsidian's composition include granite and rhyolite . Because obsidian is metastable at the Earth's surface (over time the glass becomes fine-grained mineral crystals), no obsidian has been found that is older than Cretaceous age. This breakdown of obsidian is accelerated by the presence of water. Obsidian has low water content when fresh, typically less than 1% water by weight, [6 ] but becomes progressively hydrated when exposed to groundwater, forming perlite . Tektites were once thought by many to be obsidian produced by lunar volcanic eruptions, though few scientists now adhere to this hypothesis. Pure obsidian is usually dark in appearance, though the color varies depending on the presence of impurities. Iron and magnesium typically give the obsidian a dark green to brown to black color. Very few samples are nearly colorless. In some stones, the inclusion of small, white, radially clustered crystals of cristobalite in the black glass produce a blotchy or snowflake pattern ( snowflake obsidian ). It may contain patterns of gas bubbles remaining from the lava flow, aligned along layers created as the molten rock was flowing before being cooled. These bubbles can produce interesting effects such as a golden sheen ( sheen obsidian ) or an iridescent , rainbow-like sheen ( rainbow obsidian ). MEXICO OBSIDIAN STONE TURTLE INLAID OF ABALONE SHELL & NATURAL STONE NEW . carved only one side. Elaborated by Mexican. Size. High 1.5 Inch or 3.5 Centimeters. Wide 3.5 Inch or 8.7 CM. Long 4.25 Inch or 11 CM. Weight 13.6 oz or 380 Grams. FOR THE BUYERS MUST PAY CALIFORNIA TAX. WE HAVE SHIPPING DISCOUNT ON SOME ITEMS. IF YOU THINK MAKE MULTIPLE PURCHASES PLEASE WAIT FOR YOU DISCOUNT & I WILL BE SEND YOU INVOICE THANK YOU. IF YOU DID NOT GET YOU DISCOUNT I WILL SEND YOU BACK THE OVER SHIPPING DO YOU PAID THANKS. SI VAS COMPRAR MULTIPLE ARTICULOS ESPERA A QUE TE MANDE TU DESCUENTO DEL ENVIO GRACIAS. SHIPPING TIME. THE POST OFFICES ARE WORKING SLOWER THAN BEFORE SO BE A LITTLE PATIENT. U.S.A 5 & 10 DAYS. INTERNATIONAL 20 DAY & 30 DAYS. WE ACEPT ONLY MY OTHER ITEMS: ERROR COIN, BANK NOTE , KEYRING, AMBER RING, AMBER NECKLACE, AMBER EARRING, OBSIDIAN MASK, KNIFE, OWL, TURTLE, AXE, DAGGER, WARRIOR, SHALE STONE, WOOD CARVED, BOTTLE. PARA LOS COMPRADORE TIENE QUE PAGAR TAX... read more

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