81 terms

Rock Hound

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Basalt
Rock
Basalt
Rock
Basalt
Rock
Granite
Rock
Granite
Rock
Granite
Rock
Pumice
Rock
Pumice
Rock
Scoria
Rock
Scoria
Rock
Bituminous Coal
Rock
Bituminous Coal
Rock
Limestone (Chemical)
Rock
Limestone (Chemical)
Rock
Limestone (Chemical)
Rock
Quartzite
Rock
Quartzite
Rock
Quartzite
Rock
Quartzite
Rock
Shale
Rock
Shale
Rock
Shale
Rock
Conglomerate
Rock
Congolmerate
Rock
Marble
Rock
Marble
Rock
Sandstone
Rock
Sandstone
Rock
Sandstone
Rock
Slate
Rock
Slate
Rock
Slate
Rock
Gneiss
Rock
Gneiss
Rock
Gneiss
Rock
Gneiss
Rock
Obsidian
Rock
Obsidian
Rock
Schist (Garnet)
Rock
Schist (Garnet)
Rock
Limestone (Fossil)
Rock
Limestone (Fossil)
Rock
Calcite
Mineral
Calcite
Mineral
Calcite
Mineral
Galena
Mineral
Galena
Mineral
Hematite
Mineral
Hematite
Mineral
Quartz (Chert)
Mineral
Quartz (Chert)
Mineral
Copper
Mineral
Copper
Mineral
Graphite
Mineral
Graphite
Mineral
Graphite
Mineral
Mica-Biotite
Mineral
Mica-Biotite
Mineral
Quartz (Crystal)
Mineral
Quartz (Crystal)
Mineral
Feldspar
Mineral
Feldspar
Mineral
Gypsum-Satin-Spar
Mineral
Gypsum-Satin-Spar
Mineral
Pyrite
Mineral
Pyrite
Mineral
Talc
Mineral
Talc
Mineral
Fluorite
Mineral
Fluorite
Mineral
Halite
Mineral
Halite
Mineral
Halite
Mineral
Halite
Mineral
Kaolinite
Mineral
Kaolinite
Mineral
Rocks
All rocks are made of 2 or more minerals, but minerals are not made of rocks.
Mineral
A mineral is the same all the way through. That is one reason we speak of a sample or a specimen rather than a rock. There are about 3000 known minerals on earth. All rocks are made up of 2 or more of these minerals.
Quartz
Quartz is one of the most common minerals in the Earth's crust. It is made up of silicon dioxide, otherwise known as silica. White sand is primarily made from quartz.
Biotite
All micas form flat, book-like crystals that peal apart into individual sheets on cleavage planes. Crystals cleave into smooth flakes. Biotite is dark, black or brown mica.
Calcite
Calcite is made of calcium carbonate. Generally white to clear, it is easily scratched with knife. Most seashells are made of calcite or related minerals. This is the 'lime' of limestone.