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|Name:||In allusion to the shape as steep pyramids of an unknown, pseudomorphically replaced mineral.|
Pseudomorphs of calcite after an unknown mineral (possibly ikaite) with steep pyramidal form. These pseudomorphs are frequently formed of imbricated groups of pyramids, packed one within the other to make prismatic forms up to 8 or 10 inches (20 to 25 cm) in length.
References for Thinolite
King (1878) USGS Report Geol. 40th Parallel: 1: 508.
Dana, E.S. (1884), A crystallographic study of the thinolite of Lake Lahonton: USGS Bull. 12.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 160.
Aquatic Geochemistry (1998): 4(3-4): 429-454.
Benson, L.V., 2004, The tufas of Pyramid Lake, Nevada: U.S. Geological Survey Circular 1267, 14 pp.
Internet Links for Thinolite