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2023-11-02 23:51 altermaven  
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Borrowed time? How about we borrow the amoeba instead?  
  
now most of you might be quick to point out that obsidian isn't really a mineral. Well, in this case you're right. obsidian is actually a kind of glass formed by rapidly cooled lava. in which case, obsidian is actually classified as a rock.  
  
But obsidian has had some classical uses, from spear tips, to cutting tools, and primitive scalpels. the reason why obsidian can't form a proper mineral structure is due to the high concentration of silica.  
  
while obsidian can possess a sharp edge, its brittle nature makes it inferior to blades made of metal when sturdiness is a concern.  
  
depending on impurities, the mohs hardness can vary between 5 and 6.

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2023-11-02 23:54 altermaven  
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also, this is not the only time we encounter obsidian as one of the demanded minerals or crystals. again, dangerdash 3 has a parallel to alchemyst dig 1, and cave 17 -- "Heat" -- has obsidian as the demanded item :)