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The 29 pages that link to Crystal polymorphism, each with the reason it gives.

• Crystal structureRelated: Different arrangements of the same substance can produce distinct material properties.

• Calcium carbonateRelated: Calcite and aragonite show how one formula can form distinct crystal structures.

• MineralRelated: Different structures can produce distinct minerals from the same chemical formula.

• Cocoa butterRelated: Cocoa butter crystallizes in several forms, but only one gives well-tempered chocolate its desired qualities.

• CrystallinityRelated: Different crystal forms can have different properties despite similar degrees of crystallinity.

• AragoniteRelated: Aragonite and calcite are distinct structures with the same chemical composition.

• Carbonate mineralRelated: Calcium carbonate forms both calcite and aragonite, which have different crystal structures.

• Manganese dioxideRelated: Different MnO₂ polymorphs have distinct structures despite sharing the same chemical formula.

• Molecular structureRelated: Different solid-state arrangements of the same molecules can change material properties.

• Vanadium(V) oxideRelated: V₂O₅ can occur in distinct structural forms with different material properties.

• Allotropes of sulfurRelated: Several sulfur allotropes differ mainly in how S₈ molecules pack into crystals.

• EnstatiteRelated: MgSiO₃ adopts several structures, including enstatite, depending on conditions.

• KyaniteRelated: Kyanite shares its composition with two minerals that have different crystal structures.

• Crystal engineeringRelated: Different packing arrangements can give one compound distinct crystal forms and properties.

• Mercury(II) oxideRelated: Red and yellow HgO are associated with different structural forms.

• Plagioclase feldspar solid solution seriesRelated: Contrasting with solid solution: same composition, different structures instead of one structure, varying composition.

• Silicon nitrideRelated: Silicon nitride’s alpha and beta forms are crystal-structure variants.

• Serpentine subgroupRelated: The principal serpentine minerals share similar chemistry but differ in structure.

• Tricalcium phosphateRelated: Tricalcium phosphate has distinct alpha and beta crystal forms with different stability and reactivity.