| Site Navigation |
|
Categories: Igneous rocks Volcanology Lithics Gemstones Glass in nature |
Summary Of: ObsidianObsidian is commonly found within the margins of... obsidian blade edges can reach almost molecular thinness... Though obsidian is dark in color similar to... Obsidian consists mainly of SiO... no obsidian has been found that is older than... This breakdown of obsidian is accelerated by the presence of water... Obsidian has a low water content when fresh... Pure obsidian is usually dark in appearance... typically give the obsidian a dark green to brown to black color... a large obsidian flow at Medicine Lake Volcano... a large obsidian flow at Medicine Lake Volcano... Obsidian can be found in locations which have experienced rhyolitic eruptions... Obsidian can also be found in... Obsidian has been used to help identify the indigenous tribes who have lived in the area... Obsidian talus at Obsidian Dome... Obsidian talus at Obsidian Dome... Obsidian talus at Obsidian Dome... Obsidian was valued in... obsidian breaks with a characteristic... Obsidian use in Mesoamerica... with obsidian blades mounted in a wooden body... combining the sharp cutting edge of an obsidian blade with the ragged cut of a serrated weapon... A careful analysis of obsidian in a culture or place can be of use to reconstruct commerce... even warfare implications have been studied linked with obsidian use and its debris... Native American people traded obsidian throughout North America... Similar tracing techniques have allowed obsidian to be identified in Greece also as coming from either... Obsidian cores and blades were traded great distances inland from the coast... Obsidian was also used on... Obsidian is used in... crafted obsidian blades have a cutting edge many times sharper than high... When examined under an electron microscope an obsidian blade is still smooth and even... One study found that obsidian produced narrower scars... Obsidian is also used for ornamental purposes and as a... are small rounded obsidian nuggets embedded within a grayish... Obsidian use in Mesoamerica... Obsidian use in Mesoamerica... A comparison of obsidian and surgical steel scalpel wound healing in rats... Obsidian is Hot Stuff... Obsidian is not a rapidly cooled lava...Encyclodia Page On: Obsidian |
