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Dense Ores adds a chance to find a new variant of normal ores that gives three times as much. You can also add support for mod ores through the config.
This review was of Dense Ores v1.42 for 1.7.10 by RWTema. Here is the link where you can download the mod: http://www.curse.com/mc-mods/minecraft/224942-dense-ores
On Saturdays, I post new Mod Spotlights, where I take a look at amazing and unique mods. I aim to give a quick but in-depth look into what its key features and config options. If you have any suggestions for future Mod Spotlights, let me know in the comments.
Want more Mods? Then check out my list style series Mods You Must Know, or MYMK. Here is a link to the playlist: https://www.youtube.com/playlist?list=PLEbTc9U9YqFG0Z2_sNEYnIeevgYXvPaML
The music used in the outro is Reflection by MusicByPedro. Here is a link to the song with download: http://www.youtube.com/watch?v=ijB2ULBnrDQ