commodityobsidian
class_anull
class_bnull
class_cnull
class_dnull
unitnull
nameObsidian
descriptionObsidian is the result of volcanic lava coming in contact with water. Often the lava pours into a lake or ocean and is cooled quickly. This process produces a glassy texture in the resulting rock. Iron and magnesium give the obsidian a dark green to black color. Obsidian has been used by ancient people as a cutting tool, for weapons, and for ceremonial purposes and is sometimes found by archaeologists in excavations. - http://www.galleries.com/Obsidian
urlhttp://inspire.ec.europa.eu/codelist/CommodityCodeValue/obsidian
commoditygrouppreciousAndSemiPreciousGemstones
red0
green180
blue186
crm_2020null
commoditygroup_e_mybOther minerals
commodity_and_e_mybobsidian
subcommodity_and_e_myb#
commodity_portal#