I'm playing with a pack of mods I made, but the Hexcraft mod did not create the Hexorium-Glass Package recipe.
I'm playing version 1.7.10, and the mod version is the latest: 0.11.0

I'm using Not Enough Items.

and here is the list of mods I'm playing:
[1.7.10]MoVillages-1.4.2
[1.7.10]Treecapitator-universal-2.0.4
ABO-MC1.7.10-BC7.1release4.0.9
Aroma1997Core-1.7.10-1.0.2.16
AromaBackup-1.7.10-0.1.0.0
BetterFps-1.0.1
buildcraft-7.1.23
buildcraft-compat-7.1.7
ChickenChunks-1.7.10-1.3.4.19-universal
CodeChickenCore-1.7.10-1.0.7.47-universal
DynamicSurroundings-1.7.10-1.0.6.3
EnderStorage-1.7.10-1.4.7.38-universal
forestry_1.7.10-4.2.16.64
FpsReducer-1.7.10-1.10.1
gadomancy-1.7.10-1.0.7.3
HEXCraft-1.7.10-0.11.0
IC2NuclearControl-2.4.3a
industrialcraft-2-2.2.827-experimental
InventoryTweaks-1.59-dev-152
ironchest-1.7.10-6.0.62.742-universal
logisticspipes-0.9.3.132
magicbees-1.7.10-2.4.4
neiaddons-1.12.15.41-mc1.7.10
NEIIntegration-MC1.7.10-1.1.2
NotEnoughItems-1.7.10-1.0.5.120-universal
OptiFine_1.7.10_HD_U_E7
ProjectE-1.7.10-PE1.10.1
ProjectRed-1.7.10-4.7.0pre12.95-Base
ProjectRed-1.7.10-4.7.0pre12.95-Compat
ProjectRed-1.7.10-4.7.0pre12.95-Fabrication
ProjectRed-1.7.10-4.7.0pre12.95-Integration
ProjectRed-1.7.10-4.7.0pre12.95-Lighting
ProjectRed-1.7.10-4.7.0pre12.95-Mechanical
ProjectRed-1.7.10-4.7.0pre12.95-World
Railcraft_1.7.10-9.12.2.1
Thaumcraft-1.7.10-4.2.3.5
thaumcraftneiplugin-1.7.10-1.7a
ThaumicExploration-1.7.10-1.1-53
Traincraft-4.4.0_016
WR-CBE-1.7.10-1.4.1.11-universal
Xaeros_Minimap_1.15.3_Forge_1.7.10

That is incredibly weird. Can you please do the following things:

1. Install Not Enough Items (if you don't have it already) and check if the recipe is present there
2. If not, post the full list of mods that you have

This should be fixed on the new upcoming version of the mod (should release in a few days or sooner). The reason was that some mods (in this case EnderIO) add additional Ore Dictionary entries, in this case for glass, and I was relying on them like a dummy.