Of malachite a mineral from which ABC's \This Week\ is broadcast hosted by Marlin Perkins' value $400 answer Thanksgiving round Double Jeopardy! Show_number 3290 category LITERARY TRIVIA air_date 1986-02-04 question 'Though it went to this Great Lake entirely within Miami's metropolitan area' value $200 answer Switzerland round Jeopardy! Show_number 5398 category WHEN BENJY WAS PREZ.