Our Crystal Singing Harps are manufactured from 99.99% pure quartz crystal, and are the finest, pristine, crystal singing harps.
The crushed quartz is heated to at least 1800 degrees in the manufacturing. Then, they are tested to determine the musical note.
Although the larger harps have a deeper, lower octave, tone, it is not the size that determines the 'note' of the harps.
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