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Roughly how many different minerals are there in the Earth’s crust? 3,000 Define mineral An inorganic sold with a repeating crystalline structure How many crystal systems are there? 6 What is the molten material beneath the Earth’s surface? Magma Aside from the cooling of magma, what is the other way in which minerals can form? Cooling from solution What is the most abundant element in the Earth’s crust? Oxygen This family contains Oxygen and Silicon. They can form into single or double chains and sheets. Silicates This family will fizz when you put acid on them due to having CO3 as their structure. Carbonates This family is composed of one element Native elements This family is made of Oxygen and a metal. Oxides What is the name for the silicon and oxygen structure that forms the silicates? Oxygen silica tetrahedron Cleavage or Fracture? Calcite Cleavage Cleavage or Fracture? Quartz Fracture Cleavage or Fracture? Feldspar Cleavage Cleavage or Fracture? Biotite Mica Cleavage Cleavage or Fracture? Pyrite Fracture What is Moh’s hardness scale? A scale 0f 1-10 that rates the hardness of minerals If you can scratch it with a penny, it is what hardness or less? 3 What are your two choices for luster? Metallic and non metallic Which mineral always has a brick red streak? Hematite Which is the least useful characteristic for identifying minerals and why? Color, because many minerals have the same color as each other (ex: lots of white minerals), and a mineral may have multiple colors (ex: Quartz can be colorless, white, pink, black, purple). What is the formula for density? Density = Mass Volume What is the denominator for % deviation? Accepted value What is the hardness of Quartz? 7 Which mineral will fizz when you put acid on it? Calcite Which mineral has iron, a brassy yellow color, and a different color than its streak? Pyrite What is the percent by volume amount of Oxygen in the Earth’s crust? 94.04% What is the second most abundant element in the Earth’s crust? Silicon Which mineral has fracture, a hardness of 7 and a SiO2 composition? Quartz What determines a minerals density, color, cleavage or fracture, and other mineral properties? Internal arrangement of atoms Identify and list the properties of this mineral? Hematite Metallic or nonmetallic Hardness of 5.5-6.5 or 1 Fracture Metallic silver or earthy red Red streak Identify and list the properties of this mineral? Quartz (Amethyst) Hardness of 7 -> no streak Fracture Nonmetallic Clear, purple, pink, Smokey, white Identify and list the properties of this mineral? Halite Nonmetalic Hardness of 2.5 Cleavage Colorless to white Cubic cleavage and salty taste Identify and list the properties of this mineral? Pyrite Metallic Hardness of 6.5 Fracture Brassy yellow, gold Green black streak (fools gold) Identify and list the properties of this mineral? Talc Nonmetallic Hardness of 1 Cleavage White to green Greasy feel Identify and list the properties of this mineral? Magnetite Metallic Hardness of 5.5-6.5 Cleavage Black to silver Magnetic properties Identify and list the properties of this mineral? Galena Metallic Hardness of 2.5 Cleavage Metallic silver Cubic cleavage density of 7.6 g/cm^3 Identify and list the properties of this mineral? Biotite mica Nonmetalic Hardness of 2.5-3 Cleavage Black to dark Brown Flexible in thin sheets Identify and list the properties of this mineral? Calcite Nonmetallic Hardness of 3 Cleavage White or clear Bubbles in acid Identify and list the properties of this mineral? Potassium (orthoclase) feldspar Nonmetalic Hardness of 6 Cleavage in 2 directions at 90 degrees Identify and list the properties of this mineral? Sulfur Nonmetallic Hardness of 2 Fracture White yellow streak Identify and list the properties of this mineral? Selenite gypsum Nonmetallic Hardness of 2 Cleavage White to pink or grey Identify and list the properties of this mineral? Fluorite Nonmetallic Hardness of 4 Cleavage Colorless or variable (green is common) Identify and list the properties of this mineral? Graphite Metallic Hardness of 1-2 Cleavage Silver to gray Black streak greasy feel Identify and list the properties of this mineral? Muscovite mica Non metallic Hardness of 2-2.5 Cleavage Colorless to yellow Flexible in this sheets Identify and list the properties of this mineral? Plagioclase feldspar Nonmetallic Hardness of 6 Cleavage White to gray Cleaves in 2 directions, striations visible What is the worlds largest fish? Whale Shark What is the world record holder for the tallest tree? Coast red woods What is the world’s most massive tree Giant Sequoias Why can’t you catch a cold in Antarctica? It’s too cold for the virus/germs to survive What is the world’s smallest mammal? There are two possible answers... The Etruscan shrew shares the title of world's smallest mammal with a fascinating creature from Thailand: Kitti's hog-nosed bat (Craseonycteris thonglongyai), also known as the bumblebee bat What is the worlds fastest bird? (not in a dive) The WHITE-THROATED NEEDLETAIL What is the worlds current population Just over 7 Billion (2015) What is the worlds longest snake? Reticulated python What is the worlds largest turtle? Leatherback