obsidian and diamond information

	obsidian	img	diamond	img
now use	now obsidian is used to make mirrors, jewelry and is an ideal material to make medical tools		diamond is very strong you can even cut with them,we can also see different types of jewelry like necklace, bracelets or rings
then use	ancient people also work with this material for doing arms like knives and arrowheads		the first use of diamonds was to learn more about the Earth and the formation of oceans
creations	we can also see obsidian in old mayan Art  that was used for rituals
type,	It is an igneous rock (produced by volcanic eruption outside the volcano)		mineral made of carbon
location	mostly   obsidian can be found in USA, Canadá, México, Iceland,and Italy		The diamond it is mostly found on russia on the underground
caracteristics	this is rock is generaly found in Black ,but it can also be brown, green and black with white dots		It is chemically resistant and it is the hardest known natural substance.