Guild Wars 2

I’m running through my Jewelcrafting, and seem unable to discover a recipe I think I should be able to.

At Jewelcrafting 125, I am able to discover jewels made of:

1x Silver Filigree
1x Lump

I can discover the jewel recipe for 6 of the Lumps, but not the Spinel one. Is this a bug?

Ah, just realised the problem. Getting my Lumps and my Nuggets confused :-)