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Rocks & minerals Jeopardy Words Answers

Pressure converts this fuel into graphite

Rocks & minerals • Level 96

The carrara type of this is from italy pentelic from greece & yule from colorado

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It's the principal alloy of iron

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You may be board to know that this natural abrasive is second only to diamonds in hardness

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Slate is formed by the action of heat & pressure on this sedimentary rock

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It's the term for a lump of gold; the farther it has traveled from its source the more rounded it is

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The zircon is second only to this gem in its ability to disperse light

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This soft black mineral a form of carbon is the primary raw material for synthetic diamonds

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The most extensively occurring igneous rock a lot of things are taken for this

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The most abundant sedimentary rock is this layered variety made of silt & clay

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Until about 1926 20-mule teams hauled this mineral from mines in death valley to the railroad

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Term for layers of rock having the same composition throughout

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This rock used in building the lincoln memorial was supplied by colorado georgia tennessee & alabama

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The mohs scale measures this property of minerals

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Its old name plumbago came from its use in lead pencils

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It's the name given to the hollow nodules that are lined with agate or other crystals

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A variety of quartz or american artist johns

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Kaolin a pure type of this material is formed when feldspar decomposes

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To polish teeth dentists use a powder made from this light-colored volcanic rock

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Nonskid stair treads commonly contain this substance that's also found on nail files

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Obsidian a volcanic glass is this type of rock

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A mineralogist could tell you epsomite tastes like this common seasoning

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Early man produced sparks to start fires by striking this mineral against iron

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Cassiterite sno2 is a commercially important ore of this metal

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Famous deposits of this mineral can be found in western kansas & dover england

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A carbonate of copper the ornamental stone malachite is this color

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You may be board to know that this natural abrasive is second only to diamonds in hardness

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The most abundant sedimentary rock is this layered variety made of silt & clay

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Slate is formed by the action of heat & pressure on this sedimentary rock

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Pressure converts this fuel into graphite

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A major fuel in eastern europe lignite is a soft brown type of this

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