Yes.
The properties of obsidian made it a valuable commodity for stone age tool makers, as a blade could be fashioned with a sharpness finer than that of any steel, down to nearly molecular thinness. Professional obsidian knappers can make surgical obsidian knives which can leave a smaller scar than steel knives. Another use of obsidian is as a stone in jewelry. Obsidian is a glasslike volcanic rock that ancient people made arrowheads and spear points from. Some of these are wonderful works of craftsmanship. It has been used to craft tools, historically. Obsidian has also been used to make jewelry.
Because when you take chips off it, it becomes sharp. You could chip little bits off until it's the right shape, then the edges would be sharp. Many other rocks do this, and many other rocks were used. Obsidian is the most fragile of the bunch, just it's also the sharpest. In fact, properly sharpened obsidian is sharper than steel can be.
It can be use for jewellery and stone age arrowheads, as the obsidian was much sharper when made into a specific shape. It can be sharpened to a very thin thickness. It is very shiny and is black. This is why Obsidian is common to be used in jewellery. Obsidian is igneous rock, which means that it was formed either inside (intrusive) or outside (extrusive) of the volcano. Igneous rocks are basically cooled lava, or magma.
No. Obsidian is brittle.
apatite, cobalt, zirconium, palladium, tooth enamel, obsidian (volcanic glass)
Diamonds aren't always sharper, but they can be manufactured in such a way. Diamonds are harder than steel.
There are swords that are known to be sharper than a Katana, such as the Damascus steel sword or the Ulfberht sword. These swords are crafted using different techniques and materials that can create a sharper edge than that of a traditional Katana.
Mayan weapons, as well as other indigenous people's weapons, are basically made polishing and carving stones and pieces of wood. The most used stones used at the time of the arriving of the Spanish at America were the silex and the obsidian. The obsidian was very sharp - sharper than steel, actually - and was collected at local mines, after what it was cut with hits of a splitter. It was used to make spear and a kind of sword.
The properties of obsidian made it a valuable commodity for stone age tool makers, as a blade could be fashioned with a sharpness finer than that of any steel, down to nearly molecular thinness. Professional obsidian knappers can make surgical obsidian knives which can leave a smaller scar than steel knives. Another use of obsidian is as a stone in jewelry. Obsidian is a glasslike volcanic rock that ancient people made arrowheads and spear points from. Some of these are wonderful works of craftsmanship. It has been used to craft tools, historically. Obsidian has also been used to make jewelry.
no, obsidian is a volcanic glass and would shatter under a strike from a steel blade. DO NOT ATTEMPT THIS, AS YOU WILL DIE OR BE INJURED.
Because when you take chips off it, it becomes sharp. You could chip little bits off until it's the right shape, then the edges would be sharp. Many other rocks do this, and many other rocks were used. Obsidian is the most fragile of the bunch, just it's also the sharpest. In fact, properly sharpened obsidian is sharper than steel can be.
Many surgeons use obsidian, a glass-like rock (not mineral) that is far sharper than a regular steel scalpel. They make surgery easier and more accurate, and they last many times longer than steel scalpels. The looks of scars is mainly in how tiny and close together the doctor stitches up the wound.
Yes. Obsidian is denser than water.
Carbon steel, when properly sharpened, is much sharper than stainless steels. It also holds the edge for a longer time. Only disadvantage is that it rusts quite easily.
Because pumice is lighter than obsidian always. That means obsidian weighs more than pumice.
You can make a Nether Portal. Put the Obsidian in a 4x6 vertically with a 2x3 hole in it. Using Flint and Steel or a Fire Charge, right click on the bottom Obsidian.
Get 12 obsidian and make a rectangle out if it and make sure you have flint & steel and get your flint & steel and tap your flint & steel on the portal.