Geology
Mnemonic device
Cows Often Sit Down Carefully. Perhaps Their Joints Creak? Persistent Early Oiling Might Prevent Painful Rheumatism.
Order of geological time periods: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, Cretaceous, Paleocene, Eocene, Oligocene, Miocene, Pliocene, Pleistocene, Recent
nr 25 - submitted by Anonymous (10-12-2005)
Mnemonic device
Toronto Girls Can Flirt, And Other Queer Things Can Do.
Order of Mohs hardness scale, from 1 to 10: Talc, Gypsum, Calcite, Fluorite, Apatite, Orthoclase feldspar, Quartz, Topaz, Corundum, Diamond
nr 26 - submitted by Anonymous (10-12-2005)
Mnemonic device
Ten Gypsies Calculated F.A.O. Quartz as the Top Cor diamond
Order of Mohs hardness scale, from 1 to 10: Talc, Gypsum, Calcite, Fluorite, Apatite, Orthoclase feldspar, Quartz, Topaz, Corundum, Diamond The middle part FAO Quartz sounds like the name of the toy store FAO Schwartz
nr 133 - submitted by Dennis (04-12-2006)
Mnemonic device
True Geologists Climb Faults And Observe Quarries To Contemplate Deformation
Mohs Hardness ScaleTalc, Gypsum, Calcite, Fluorite, Apatite, Orthoclase, Quartz, Topaz, Corundum, Diamond
nr 149 - submitted by Matt (09-08-2006)
Mnemonic device
Olivia's Parrots Actually Bite, So Pull Finger--Move Quick!
The Olivia sentence stands for Olivine, Pyroxene, Calcium Plagioclase, Amphibole, Biotite, Sodium Plagioclase, Potassium Feldspar, Muscovite, Quartz. This can be used either for the order of crystalization of igneous minerals, or the order of silicate minerals from least to most resistant. The PC stands for Pyrox. and Cal. Plag., while the initials BS=Biotite and Sod. Feld-these minerals crystalize around the same temperature, so the BS and PC are just a reminder that the order of crystalization is not a sequential as the Olivia mnemonic suggests.
nr 181 - submitted by Nic (10-21-2006)