No, diamond is the hardest known mineral.
No, you need a diamond pickaxe to successfully mine obsidian, and it takes 15 seconds. With anything else it take a minute, roughly. If you do not use a diamond pickaxe you will not be able to mine the obsidian.
No. Only a Diamond Pickaxe can mine obsidian.
No you can't you can only mine the obsidian with a diamond pickaxe.
You may only mine Obsidian with a Diamond Pickaxe.
You need a Diamond pickaxe to mine Obsidian.
No. Diamond is harder than emerald.
No, diamond is harder than enamel.
Diamond is harder than plastic.
Diamond is harder than onyx.
nothings harder than a diamond
Diamond is harder than any metal.
Yes, diamond is harder than granite. Diamond is the hardest mineral known. And it is several times harder than granite.
Impossible to say, not knowing the definition of plain regular rock. There are some rocks harder than obsidian, while many are softer.
Diamond is harder than steel: you can scratch steel with a diamond, but steel will not scratch a diamond.
No. Obsidian has a high silica content: diamond is only carbon.
Diamonds are the hardest and are rated 10 on the Mohs scale, which is a “The Mohs scale of mineral hardness is a qualitative ordinal scale that characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material”. Source: https://en.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness
Yes, harder than any metal.