Assertion: talc's structure | /r/CapableOf | allow various ways
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Source sentences:
text: Another significant feature of layer silicates, owing to their similarity in sheet structures and hexagonal or near-hexagonal symmetry, is that the structures allow various ways to stack up atomic planes, sheets, and layers, which may be explained by crystallographic operations such as translation or shifting and rotation, thereby distinguishing them from polymorphs (e.g., diamond-graphite and calcite-aragonite).