(For figure of crystal of sapphire see Corundum and for artificial sapphire see GEM, § Artificial.) The so-called "Hope sapphires" of trade have been shown to be artificial blue spinets, coloured by cobalt. [Please select]
0
The old spinets and harpsichords, with their charming inlaid cases, were beautiful, but they gave forth only tinkly sounds. [Please select]
Do you have a better example in your mind? Please submit your sentence!