Definition
Name that mineral
How to?
100
What is the definition of streak?
A streak is a long, thin line or mark of a different substance or color from its surroundings.
100
What mineral has a hardness of 10 and has a white streak?
Diamond!!!
100
How do you find the hardness of a mineral?
Hardness is measured by the resistance which a smooth surface offers to abrasion.
200
What is the definition of hardness?
Hardness is the resistance of a mineral to scratching.
200
What mineral has a hardness or 8 and is a milky white crystal?
Quartz!
200
How do you find the streak of a mineral
The streak test is done by scraping a specimen of the mineral across a piece of unglazed porcelain plate
300
What is the definition of cleavage?
Cleavage is the splitting of rocks or crystals in a preferred plane or direction.
300
What mineral has a hardness of 7 an no streak?
Peridot!!!!
300
How do you find the luster of a mineral?
The quantity and quality of the light which is reflected from a mineral's exterior surfaces.
400
What is the definition of luster?
The way a mineral reflects the light.
400
What mineral has a hardness of 6 and a black streak?
Pyrite!!!
400
How do you find the luster of a mineral?
fracture is the texture and shape of a rock's surface formed.
500
What is the definition of fracture?
Fracture is the physical appearance of a freshly broken rock or mineral, especially as regards the shape of the surface formed.
500
What mineral has a hardness of 3.5 and a blueish purple streak?
Silver!!!!
500
How do you find the cleavage of a mineral?
Cleavage is determined by the crystal structure of the mineral.