Historical clue formulations

• What an anemic person might lack — 2019-09-14
• Kind of deposit — 2017-07-01
• Manila alternative, in a guessing game — 2016-09-15
• Feldspar, e.g. — 2012-09-12
• 20 Questions category — 2011-05-23
• With 61-Across, prospectors' targets — 2009-09-13
• Contents of a lode — 2009-01-14
• Kind of water — 2008-02-16
• 20 Questions category — 2007-04-05
• Word with spring or water — 2003-04-05
• Children's game classification — 1999-10-17
• 20 Questions category — 1997-04-27
• Old quiz show category — 1997-03-08
• Feldspar, e.g. — 1996-12-29