So that you can plan accordingly, Hampton Research will be closed Monday, December 22, 2025 and will reopen Monday, January 5, 2026. All orders received after Friday, December 19, 2025 4:00 PM (Pacific Standard Time) will be processed Monday, January 5, 2026. Each and every one of us at Hampton Research appreciates you using Hampton Research crystallization research tools. As always, best of success with your crystals!