ROCKS AND MINERALS

Front

Which property of a mineral can be observed directly? Options: Color, Luster, Hardness, Texture

Back

Color

Front

According to the Mohs scale of hardness, which is the second softest mineral? Options: Apatite, Calcite, Gypsum, Talc

Back

Gypsum

Front

What property of mineral continues glowing even after a source of ultraviolet has been turned off?

Back

Phosphorescence

Front

The diagram above shows the index minerals Mohs hardness scale compared with the hardness of some common objects. Which statement is best supported by the diagram? Options: A fingernail will scratch calcite but not gypsum, Calcite will be scratched by a copper penny, The mineral apatite will scratch topaz, A steel file has a hardness of about 7.5

Back

Calcite will be scratched by a copper penny

Front

Which physical property of mineral is demonstrated by this pattern of breakage?

Back

fracture

Front

Owen tested a mineral by rubbing it on a white tile, leaving a red mark. Which physical property was he most likely testing? Options: cleavage, hardness, luster, streak.

Back

streak

Front

Which process is necessary for the formation of igneous rocks?

Back

solidification

Front

What are igneous, sedimentary, and metamorphic rocks usually composed of?

Back

minerals

Front

Magma that cools slowly beneath the earth's surface produces

Back

intrusive igneous rocks

Front

Rock Salt (NaCl) is formed from this mineral.

Back

Halite