NOTE: This version is now obsolete. The current version can be found here: https://dffd.bay12games.com/file.php?id=4005

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This mod adds proper density values for all the stones and metals. It also adds STATE_COLOR color information for the gems and metals. The V2 now updates the wood colors and densities. A lot of those were in there already, but I added many and updated a few. The V2 also has soil density fixes based on better data. Not that there was much wrong with the old one. It was surprisingly accurate, given the speculative nature of the model used to generate it.

This mod also includes several fixes, such as correcting the density of ilmenite, saltpeter and a few others, differentiating the densities of bituminous coal and lignite. Also, tanzanite is fixed to occur in any metamorphic layer, rather than in gabbro, just like it does IRL. The rarity is the default, though. It should be incredibly rare, given that it occurs only in one place in the world. The colors were based on RL gemstones. In reality, many of them can differ by quite a lot and some are hard to represent in game. For example, real bloodstone is dark green with red bands. In game, it's red.

This includes two folders: "MODIFIED" and "ORIGINALS". The names should be self-explanatory. The ORIGINALS are raws from 31.25, so that people can generate diffs and patch these modifications into their own mods, etc. You're free to do that, incidentally. Anyone may incorporate this mod into their own or do whatever they like with it. No restrictions.

Thanks to Bohandas and others for their help.