The condensed substance (fire/shadow/ice) is used to make arrowheads with the smithing skill (116). Then combine with Acrylia shafts, Shield fletch and small nock ONLY using the fletching skill (250).
*facts taken from experience and 2 websites:
http://www.eqtraders.com/secrets/recipes_fletching.htm
http://giftsplace.com/eqranger/fletch/FletchCalc.html
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The subcombine above is redundant. Why would you use "pieces of ore" to make "small brick of ore" to make the "pieces of ore"?