AHA! Welcome to the long, thankless, blisteringly repetative trade of infusing! I could only stand it for a short short while before going irrefuteably mad and getting tossed out of the tower by Moraken, so the best of luck to you. I do not sell these gems myself, though the latter two, Feldspar and Garnet I know where they can be found in abundance. However, guild law dictates that I can neither explicitly, so I shall leave some clues...
For feldspar and Garnet...
It has two names but is nothing of either,
guards both of these gems but uses them neither.
A constant thorn in the sea voyager's side,
water water everywhere, a boat must you ride.
or another spot, which is far more treacherous...
Held in by dwarves and cut off from sight,
they grow in dark realms festering with blight
ruled by the god-king darker than night
only the mad would climb there to fight.
as for amethysts...
colder than a Dark Age's winter,
they grow where blood doth splinter
With goblin heads and walking on all four
you must face their protectors in a most frigid war.
Hope those help. And if you already knew where they all were but simply wanted a gatherer... well at least now you have a few more riddles to amuse the peasantry with. Good luck on your gem-hunting!
-Farros Galdor
