CRYSTAL, ROCK (bolūr, bolūr-e kūhī), a pure, transparent variety of quartz (SiO2; see, e.g., Encyclo­pedia Americana, s.v. quartz), usually called…

PEARL (dorr, loʾloʾ [both large pearls], marjān [small pearls]). i. PRE-ISLAMIC PERIOD In modern Persia the term morvārid is generally…