you need a diamond pick and to mix water and magma
diorite,gabbro,granite,obsidean,pumice,rhyolite,andesite
The common uses of obsidian are to make jewelry and Stone Age arrowheads. The obsidian is shaper when they are made in a specific way the colors are usually shiny black.
MINECRAFT!!!!
It's called Minecraft... creepers have ALWAYS been in Minecraft.
100% minecraft
minecraft is dogwater
Although technically it's not a mineral (but rather a glassy form of rhyolite containing predominantly orthoclase, quartz, and mica), obsidian would fall into the 5 - 5.5 range on the Mohs scale of hardness.
You can email Minecraft if you have any questions about Minecraft. That's what the Minecraft Help Email is.
There are no schools in Minecraft and/or a school that teaches minecraft.
Those are in minecraft forums - there are no clans in Minecraft alone.
You have to get an account on the real minecraft website.
To get Minecraft for free, you need to download it on Xbox.