21. It exists in two polymorphs ( crystalline forms ). 22. The most common Cu 2 ( OH ) 3 Cl polymorph is atacamite. 23. The otherwise unstable polymorph was produced and stabilized within a cyanobacteria dominated layer. 24. Two polymorphs of technetium trichloride exist, ?-and ?TcCl 3. 25. Feroxyhyte and lepidocrocite are both polymorphs of the iron oxyhydroxide FeO ( OH ). 26. Additionally, carbon polymorphs even harder than lonsdaleite have been discovered in the crater. 27. Several polymorphs of sodium tungstate are known, three at only one atmosphere pressure. 28. The spell duel continues until Dyrr polymorphs himself into a Gigant and petrifies Gromph. 29. It exists in various forms ( polymorphs ). 30. The stable monoclinic polymorph is also known as ?-Li 2 TiO 3.
