Iraq - "unknown crystals" found in weapons cache

It might not be anything, but this sounds odd.

And elements of the 1st Battalion, 87th Infantry Regiment, 1st Brigade Combat Team, 10th Mountain Division, found a weapons cache during a patrol west of Baghdad on Feb. 7. The cache was located in a field near a house. It consisted of one anti-tank mine, an unknown quantity of homemade explosives, one 55-gallon plastic drum containing small bean bags filled with BB-sized crystals, six grenades, one dismantled RPK, one 60 mm mortar tube, two 60 mm mortar systems and two rocket-propelled grenade rounds.

An explosive ordnance disposal team was dispatched and cleared the unknown crystals. The incident is under investigation.

Strange.
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