Jeopardy Minerals Igneous Rocks $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Sedimentary Rocks $100 $200 $300 $400 $500 Metamorphic Rocks Rock Pile $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 What determines the physical properties of a mineral? The internal arrangement of atoms This term describes the way minerals break on irregular surfaces. Fracture What is the name of a mineral’s color in powdered form? Streak The tendency of some minerals to break along straight lines forming flat surfaces is called Cleavage What is the range of hardness values found on Mohs Hardness Scale? 1-10 Name a fine grained igneous rock formed from basaltic magma Basalt An igneous rock with glassy texture, that is dark and comes from granitic lava. Obsidian Name a high density, BASALTIC, intrusive igneous rock. Gabbro DAILY DOUBLE This igneous rock is light colored, and has large grain size Granite The size of the crystals found in an igneous rock is determined by its........ Rate of cooling How are detrital sedimentary rocks classified? By particle (grain) size and shape What two processes must occur in order for loose sediment to be made into sedimentary rock? Compaction & Cementation Name the detrital sedimentary rock which is formed by angular fragments the size of pebbles or larger. Breccia In what kind of environment do rock salt and limestone form? In a marine (ocean) environment Name a chemical sedimentary rock, that would fizz when HCl acid is added to it. Limestone In order for metamorphic rock to form, the parent rock must be subjected to..... Heat and/or Pressure Metamorphic rocks may sometimes have minerals in layers. This property is called Foliation A foliated metamorphic rock that is very shiny. Schist Which metamorphic rock shows banding? Gneiss When limestone is metamorphosed it becomes… Marble What kind of rock is produced if quartz sandstone is subjected to long periods of heat and/or pressure? Quartzite What kind of rock is produced when magma cools and solidifies underground? Intrusive Igneous Name a rock that may be produced when a sea evaporates. Rock salt What sort of rocks: igneous, sedimentary or metamorphic are most likely to form in stacks. Sedimentary What property of a mineral is illustrated by the diagram? Cleavage The silicate minerals have which 2 elements in their chemical formula? Silicon and Oxygen FINAL JEOPARDY Topic: Rocks – What else? ? Is a rock an element, compound or a mixture? Mixture!