RE: Crystal types: sapphire, mineral and acrylic trade-offs for daily wear · RWI-00624

Summary draft for “Crystal types: sapphire, mineral and acrylic trade-offs for daily wear”: the answer addresses “Sapphire is very hard to scratch but can chip or crack…”; the related point is “Acrylic scratches easily but flexes, rarely shatters, and light scratches…”. Keep both connected to the opening question, and mark any conclusion needing further records as unresolved. Review focus: scope. Keep the stated question separate from any broader claim.