Historical clue formulations

• Word with heavy or scrap — 2025-12-11
• Headbanger's genre — 2025-07-17
• Valuable part of ore — 2022-02-15
• Rock genre — 2022-02-12
• Rock genre — 2022-01-25
• Music genre often labeled "heavy" — 2021-12-13
• U, V or W, on the periodic table — 2020-09-03
• Lead, e.g. — 2020-03-20
• Gold or platinum — 2019-09-16
• Music genre that's the focus of Decibel magazine — 2019-02-15
• Music genre that's sometimes "heavy" — 2017-08-29
• Grammy category — 2017-07-29
• Microwave no-no — 2017-04-15
• Genre for Mötley Crüe — 2017-01-03
• Tin or titanium — 2016-05-16
• Headbanging music — 2015-06-16
• Genre featured on MTV's "Headbangers Ball" — 2014-05-15
• Lithium or iridium — 2013-12-04
• Rock genre — 2013-11-24
• Lead, for one — 2013-09-10
• Black Sabbath's genre — 2012-11-28
• Founding need — 2012-08-25
• Zinc or zirconium — 2011-08-29
• "Heavy" music genre — 2011-07-04
• Rock music genre — 2010-10-21
• Rhenium or rhodium — 2010-08-22
• Like most golf woods, nowadays — 2010-02-24
• Almost any element whose name ends in -ium — 2009-11-09
• Zinc or zirconium — 2009-08-03
• Silver or platinum — 2009-06-15
• Rock genre — 2008-04-06
• Bad stuff to microwave — 2007-11-18
• Stuff in a mint — 2007-05-05
• Quonset hut material — 2007-01-21
• Rock genre, informally — 2005-04-26
• Rock music genre — 2004-11-29
• Ozzy Osbourne's music, for short — 2004-02-24
• Music genre — 2003-04-06
• Rock music subgenre — 2003-02-23
• Tungsten, e.g. — 2002-10-24
• Ozzy Osbourne's music, informally — 2002-09-15
• Palladium, for one — 2002-07-10
• It may be picked up in a bar — 2001-11-18
• Mercury or cobalt — 2000-04-25
• It may be forged — 2000-02-26
• In rock, it may be heavy — 1999-05-16
• Copper, e.g. — 1997-09-22
• One may be precious — 1996-11-20
• Iridium, e.g. — 1996-08-26
• Get a lode of this! — 1995-12-17