Mercury (element) long periods at elevated temperatures. It reverts to the elements upon heating near 400 °C, as was demonstrated by Joseph Priestley in an early synthesis of pure oxygen. Hydroxides of mercury are poorly characterized, as they are for its neighbors gold and silver. Being a soft metal, mercury forms very stable derivatives with the heavier chalcogens. Preeminent is mercury(II) sulfide, HgS, which occurs in nature as the ore cinnabar and is the brilliant pigment vermillion. Like ZnS, HgS crystallizes in two forms, the reddish cubic form and the black zinc blende form. The latter sometimes occurs naturally as metacinnabar. Mercury(II)
Cinnabar Theater Cinnabar Theater The Cinnabar Theater, located in Petaluma, California, is a professional non-profit theater producing opera and musical theatre, drama and a chamber music series in a 120-seat venue, under the auspices of the Cinnabar Arts Corporation. The venue is also home to the Young Repertory Theater (founded in 1983), the longest running and largest youth performing arts program in Sonoma County. The company's Music Director is Mary Chun. The theater, a 1908 schoolhouse, was purchased by Marvin Klebe (1935–1999) in 1970. Klebe converted it into a theater, which opened in 1972 as a venue to produce opera and musical