This is fair enough. You require me to support my statements, and I shall do so.

As it turns out, a single mod in FtB (industrialcraft) has around 100 instances of misused textures. I was very conservative with my choices, selecting only those that are obvious edits of a trivial nature (such as hue edits) rather than questionable ones with a significant amount of non-trivial modification.

For convenience, the position of texture on texture sheets shall use the format X:Y where X is the horizontal position of the texture on the texture sheet, and Y the vertical one, such that 1:1 is the upper left corner and 16:16 is the lower right (given a texture sheet that has 16x16 textures upon it.) This along will be more than enough to satisfy your requirement of 10 instances.

This is just one of the mods in FtB. If required, I can also cite instances in the other packs, though will do so in much more general terms than a coordinate list of every single instance Of course, if interested you can also compare the texture sheets yourself.

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ic2\sprites\block0.png:


Textures 2:1 and 2:2 are edits of texture 8:2 (gold block) in Minecraft's terrain.png.

Textures 14:6, 15:5, and 15:6 are edits of texture 9:2 (Diamond Block) in Minecraft's terrain.png

Textures 13:1, 15:1, and 16:1 are edits of texture 7:1 (Double stone slab) in Minecraft's terrain.png

Textures 1:3, 2:3, and 3:3 are edits of texture 2:3 (iron ore) from Minecraft's terrain.png

Textures 13:3, 14:2, 14:3, and 15:3 are edits of the texture 5:2 (Oak Log) from Minecraft's terrain.png

Texture 16:3 is an edit of texture 6:2 (oak long top) from Minecraft's terrain.png

Textures 11:4, and 15:4 are direct copies of texture 11:1 (TNT Bottom) from Minecraft's terrain.png

Textures 12:4 and 15:4 are direct copies of texture 10:1 (TNT Top) from Minecraft's terrain.png

Texture 6:8 is an edit of texture 5:1 (oak wood planks) from Minecraft's terrain.png

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ic2\sprites\crops_0.png:

Textures 3:3, 3:4, 3:5, 3:6, 3:7, 3:8, and 3:9 are edits of 9:6 through 16:6 (various stages of wheat growth) respectively from Minecraft's terrain.png

Texture 6:2 is an edit of texture 13:1 (Rose) from Minecraft's terrain.png

Texture 12:2 is an edit of \texture 16:6 (Wheat Fully Grown) from Minecraft's terrain.png.

Textures 15:2 and 15:3 are edits of texture 10:5 (Sugar Cane) from Minecraft's terrain.png.

Textures 6:3, 7:3, 8:3, 9:3, and 10:3 are edits of textures 15:3 through 15:5 (various stages of Nether Wart growth) in Minecraft's terrain.png.

Textures 13:3, 14:4, and 15:3 are edits of 14:6 through 16:6 (various stages of wheat growth) from Minecraft's terrain.png

Textures 1:4, 2:4, 3:4, and 4:4 are edits of 10:13 through 13:13 (various stages of potato/carrot growth) respectively from Minecraft's terrain.png

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ic2\sprites\item_0.png:

Textures 1:1, 2:1, 3:1, 4:1, 5:1, 6:1 and 7:13 are edits of texture 9:4 (redstone dust) from Minecraft's items.png located in minecraft.jar\gui

Textures 8:1, 9:1, 10:1, 11:1, and 13:1, are edits of texture 8:3 (Gold Ingot) from Minecraft's items.png

Textures 6:2, 7:2, 8:2, 9:2, 10:2, and 12:10 are edits of 8:4 (diamond) from Minecraft's items.png

Textures 1:5, 2:5. 3:5. 4:5. and 5:5 (bronze tools) are edits of 3:7, 3:8, 3:5, 3:6, and 3:9 (iron tools) respectively from Minecraft's items.png

Textures 6:6, 7:6, 8:6, and 9:6 (bronze armor) are edits of 3:1, 3:2, 3:3, and 3:4 (iron armor) respectively from Minecraft's items.png


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 In ic2\sprites:

All the files starting with "GUI"(GUI6by3.png through GUIWindGenerator.png when sorted alphabetically) ( a total of 31 textures) are all edits of crafting.png from minecraft.jar\gui, or the other GUI textures from the same folder, many of which are very much similar.