Tyrian purple (Greek, πορφύρα, porphyra, Latin: purpura), also known as royal purple, imperial purple or imperial dye, is a purple-rednatural dye, which is a secretion produced by certain species of predatory sea snails in the family Muricidae, a type of rock snail by the name Murex. This dye was possibly first used by the ancient Phoenicians. The dye was greatly prized in antiquity because the color did not easily fade, but instead became brighter with weathering and sunlight.
warna ungu yang dihasilkan mungkin berbeza kerana kandungan kimia yang berbeza
siput ini lah yang akan menghasilkan warna ungu yang sangat mahal ini
dlu pernah keluar di history channel kalau tak silap, isi siput tu akan dikeluarkan masuk dalam periuk, dan di masak dengan air kencing selama ber jam2 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahhhhh tidakkkkkkkkkkkkkkkkkkkk...... kalau tak guna air kencing, tak akan keluar warna purple, maknanya tak jadi.... sebb isi siput tu lebih kurang macam isi tiram jer... mmg tak der pewarna purple, korek lah macam mana pon tak akan jumpa...
emperor2, firaun2 dan permaisurinyer jer yang pakai warna ni...