The future continues to look very bright for the company's material of choice.Reflecting the highly reactive element within its name, Sigma Lithium (SGML +9.78%) has been a volatile stock over the past few trading days. On Tuesday, its shares zoomed nearly 10% higher, largely due to positive news about a peer, after a significant drop the previous trading session. An alpha stock for someThat peer is Albermarle, which, although larger and more diversified, still has a significant lithium business. Over the p ...