Attempts to resolve the Quandary:
2
While cacholong is not in the vernacular of the common thief, the flagitious Dr. _bs_d__n (whose name is here emvoweled to avoid the libel case he'd love to wage), knew quite well how to identify the milky white opals he stole from my warehouse and sold as his original finds. (by Rudi)
1
"Wrapped in a bay leaf and held in the hand, a cacholong confers invisibility, while the chalcedony for which it is occasionally mistaken only renders its possessor fortunate in law," remarked Mr. M---------, necessarily emvoweled because his comfortable standing in the field of gemology would be completely compromised if it became known that his shocking - nay, flagitious! - behavior was responsible for the spread of the Malinowski virus, known in the vernacular as "dead man walking". (by cusheamus)

3
Such flagitious noctivagant activity betrayed Count (and for our very safety, I must here emvowel his name, Heaven preserve us) Dr--ula as the murderous malefactor, as did the cacholong pallor - an opalescent bluish white - of his scantily-clad female victims once he had supped deep on their life blood, or, to put it in the vernacular, wet his whistle. (by Et Seqq)