This page discusses the White House's construction in 1792 using porous sandstone, initially causing water damage, which was mitigated with a protective mixture that contributed to its white color. It...This page discusses the White House's construction in 1792 using porous sandstone, initially causing water damage, which was mitigated with a protective mixture that contributed to its white color. It highlights sedimentary rocks like sandstone, detailing their formation through compaction and lithification processes like cementation. The lesson further categorizes various types of sedimentary rocks based on composition and formation methods.