Hexaplex trunculus degrades, resulting in blue only. Nonetheless, archeologists have confirmed Hexaplex trunculus as the species used to create the purple-blue dye; large numbers of shells were recovered from inside ancient live-storage chambers that were used for harvesting. Apparently, 10- to 12,000 murex yielded only one gram of dye. Because of this, the dye was highly prized. Also known as "Royal Purple", it was prohibitively expensive and was only used by the highest ranking aristocracy. A similar dye, "Tyrian purple", which is purple-red in color, was made from a related species of marine snail, "Murex brandaris". This dye (alternatively known as "imperial
Tyrian shekel in the New Testament Gospels (Matt. 21:12 and parallels) exchanged Tyrian shekels for common Roman currency. Tyrian shekel Tyrian shekels, tetradrachms, or tetradrachmas were coins of Tyre, which in the Roman Empire took on an unusual role as the medium of payment for the Temple tax in Jerusalem, and subsequently gained notoriety as a likely mode of payment for Judas Iscariot. In the latest standard, which was also the one used for the temple tax, the coins bore the likeness of the Phoenician god Melqart or Baal, accepted as the Olympian Herakles by the Greeks and derided as Beelzebub by