Earth's minerals

WHICH OF THE FOLLOWING DESCRIBES LIGHT REFLECTING OFF A MINERAL?

• LUSTER

• COLOR STREAK

• VIRTUAL ABSORPTION

• FLUORESCENCE

THE STRONG TENDENCY OF CERTAIN MINERALS TO BREAK ALONG SMOOTH, FLAT, PARALLEL PLANES IS KNOWN AS

• STREAK

• CLEAVAGE

• CRACKLING LUSTER

• FRACTURE

WHAT IS THE MEASURE OF HOW EASILY A MINERAL CAN BE SCRATCHED?

• LUSTER

• HARDNESS

• CLEAVAGE

• FRACTURE

WHAT IS THE COLOR OF A POWDERED MINERAL FORMED WHEN RUBBING IT AGAINST AN UNGLAZED PORCELAIN TILE?

• LUSTER

• DENSITY

• HARDNESS

• STREAK

WHICH IS THE HARDEST MINERAL ON THE MOH'S SCALE?

• TALC

• QUARTZ

• DIAMOND

• FELDSPAR

WHICH IS A CHARACTERISTIC OF A MINERAL?

• IT CAN BE A LIQUID

• IT IS ORGANIC

• IT HAS NO CRYSTAL STRUCTURE

• IT IS INORGANIC

MINERALS ARE IDENTIFIED ON THE BASES OF

• THE METHOD BY WHICH THEY ARE FORMED

• THE TYPE OF ROCK IN WHICH THEY ARE FOUND

• THE SIZE OF THEIR CRYSTALS

• THEIR PHYSICAL PROPERTIES

WHAT ARE ALL ROCKS MADE UP OF?

• MINERALS

• SOMETHING THAT ONCE WERE ALIVE

• SAND

WHAT IS A GEMSTONE?

• A MINERAL THAT IS RARE AND CONSIDERED TO BE BEAUTIFUL

• A ROCK OR MINERAL THAT IS USED TO MAKE JEWELRY

• A ROCK OR MINERAL THAT IS VALUABLE

• ALL OF THE ABOVE

A MINERAL THAT CAN BE PEELED INTO EVEN SHEETS HAS WHICH OF THE FOLLOWING PROPERTIES?

• LOW DENSITY

• CONSISTENT STREAK

• GOOD CLEAVAGE

• TRICLINIC CRYSTAL SHAPE