Não exatamente. Mas existem diferentes tipos de magia e diferentes abordagens filosóficas para seu uso, que dependendo da sua perspectiva podem equivaler à mesma coisa. Tolkien discute isso um pouco na Carta 155 não enviada:
[F]or the purposes of the tale, some would say that there is a latent distinction such as once was called the distinction between magia and goeteia. Galadriel speaks of the 'deceits of the Enemy'. Well enough, but magia could be, was, held good (per se), and goeteia bad. Neither is, in this tale, good or bad (per se), but only by motive or purpose or use. Both sides use both, but with different motives. The supremely bad motive is (for this tale, since it is specially about it) domination of other 'free' wills. The Enemy's operations are by no means all goetic deceits, but 'magic' that produces real effects in the physical world. But his magia he uses to bulldoze both people and things, and his goeteia to terrify and subjugate. Their magia the Elves and Gandalf use (sparingly): a magia, producing real results (like fire in a wet faggot) for specific beneficent purposes. Their goetic effects are entirely artistic and not intended to deceive: they never deceive Elves (but may deceive or bewilder unaware Men) since the difference is to them as clear as the difference to us between fiction, painting, and sculpture, and 'life'.
The Letters of J.R.R. Tolkien 155: To Naomi Mitchison (draft). September 1954
A principal diferença não é que magia é usada, mas o meio que ela usa: o lado "bom" usa magia para beneficente (acender uma fogueira em uma montanha de neve para não congelar até a morte) ou artística (a Silmarils) efeito; o lado "ruim" usa isso para dominar a terra e as pessoas.
No entanto, apesar das conclusões feitas em algumas respostas às perguntas ligadas, a ideia de "estudar" a magia parece fundamentalmente incorreta; Tolkien observa, perto do final da Carta 155, que a magia não é uma questão de conhecimento, e que não é atingível pelos homens:
[A] difference in the use of 'magic' in this story is that it is not to be come by by 'lore' or spells; but is in an inherent power not possessed or attainable by Men as such. Aragorn's 'healing' might be regarded as 'magical', or at least a blend of magic with pharmacy and 'hypnotic' processes. But it is (in theory) reported by hobbits who have very little notions of philosophy and science; while A[ragorn] is not a pure 'Man', but at long remove one of the 'children of Luthien'.
The Letters of J.R.R. Tolkien 155: To Naomi Mitchison (draft). September 1954
Na melhor das hipóteses, podemos dizer que "estudar" a magia envolve aprender a usá-la para diferentes propósitos, como Celebrimbor aprendeu Ringmaking de Sauron.