Cleavage is the measure of how a mineral breaks along a plain when it is exposed to stress. If, when the mineral breaks, it retains a smooth surface along the broken plain it has cleavage. Hardness is the mineral's ability to resist scratching. Diamond is the hardest mineral and it cannot be scratched by anything except another diamond.
The internal atomic structure of a mineral most likely determines the mineral's hardness, cleavage and crystal shape.
there are a few basic tests to identify a material. hardness, color, lustor, crystal form, cleavage, and streak. I believe this is all of them, but it has been several years. They are classified by the same tests that identify them. For example, diamond is classified as a 10 hardness material (the only 10 hardness material) Glass is 7 hardness.
.A Ruby.A Gold Nugget.Coal.Brass.Obsidian.Basalt.Fluorite
Rubies typically exhibit a conchoidal fracture, which means they break with smooth, curved surfaces similar to broken glass. Their cleavage is usually absent or very poor, meaning they do not break along distinct planes or directions.Ruby is a hard and durable stone, scoring 9 on the Mohs scale of mineral hardness, making it resistant to scratching and abrasion.
Cleavage is smooth; Fracture is rough. Cleavage splits along flat surfaces; Fracture splits along jagged surfaces. Cleavage is Cleavage; Fracture is Fracture
The internal atomic structure of a mineral most likely determines the mineral's hardness, cleavage and crystal shape.
Orthoclase Feldspar.
Galena
Graphite
Calcite is a mineral that is white or colorless and has a hardness of 2.5 and splits with cubic cleavage.
The original options for this question were cleavage, luster and hardness. The answer would be cleavage.
You can tell rocks apart by its hardness, cleavage, and streak
color, luster, fracture/cleavage, streak, hardness, density
the 5 properties are cleavage hardness luster color streak
Atomic arrangement.
the streak of the mineral
He is either investigating if it is facture or cleavage. Or he could be trying to test it's hardness. He is either investigating if it is facture or cleavage. Or he could be trying to test it's hardness.