How to identify minerals.
How to test for what kind of rock or mineral you have .
The hardness is masher by the Moas hardness scale. The thing with this scale is the higher the number the more you can scratch so if you are number one you can not scratch a number ten, but the number ten can scratch the number one. The softest stone is talc the hardest is diamond the chart is like this. Talc number one, Gypsum number two, Calcite number three, Fluorite number four, Apatite number five, Feld spar number six, Quarts number seven, Topaz number eight, Corundum number nine, Diamond number ten.
The streak the streak is the color inside the rock. How to test it is you scratch it against a white tile some times there is no color when you scratch it.
How to test if it has cleavage or it fracture the way you want to check break part of it off if it breaks nice and smooth it has cleavage if it breaks with ruff jagged edges it is a fracture.
Luster is if the mineral has a shine the way to test if it has luster is let the light beam on the mineral if does shine then it has luster.
Crystal structure is when the mineral has straight edges, flat sides, and regular angles
The next way to test is shape the shapes are. Cubic, Tetragonal, Hexagonal, Orthorhombic, monoclinic, triclinic.
The last one and important but not the most important is color is very straight for word just look at what color it is and that will help.
The hardness is masher by the Moas hardness scale. The thing with this scale is the higher the number the more you can scratch so if you are number one you can not scratch a number ten, but the number ten can scratch the number one. The softest stone is talc the hardest is diamond the chart is like this. Talc number one, Gypsum number two, Calcite number three, Fluorite number four, Apatite number five, Feld spar number six, Quarts number seven, Topaz number eight, Corundum number nine, Diamond number ten.
The streak the streak is the color inside the rock. How to test it is you scratch it against a white tile some times there is no color when you scratch it.
How to test if it has cleavage or it fracture the way you want to check break part of it off if it breaks nice and smooth it has cleavage if it breaks with ruff jagged edges it is a fracture.
Luster is if the mineral has a shine the way to test if it has luster is let the light beam on the mineral if does shine then it has luster.
Crystal structure is when the mineral has straight edges, flat sides, and regular angles
The next way to test is shape the shapes are. Cubic, Tetragonal, Hexagonal, Orthorhombic, monoclinic, triclinic.
The last one and important but not the most important is color is very straight for word just look at what color it is and that will help.
Rocks farther down.
The three types of rocks
There are three tipes of rocks they are Igneous, Metamorphic, and sedimentary.
Igneous
The first one I will start with is the igneous rock. The geologist said that igneous rock are formed when lava cool creates the igneous rock, this is formed intrusive and extrusive. The more crystals that are in the igneous rock the faster it cools.
Metamorphic
Did you know igneous and sedimentary rocks could become metamorphic? The way the become metamorphic is when the get buried under ground and it will slowly dissolve into the ground and when it get close enough to heat it will get rebuilt and there for becoming a metamorphic rock it will also change it's physical and chemical features.
Sedimentary
Sedimentary rock, sediment is made from chemical reactions this is mainly done in water it can have loose bits of rocks, plants, or animals. Water or wind can change the position of the sediment. The larger the sediment the faster it settles. The reason why large sediment settles faster is because the weight pushes down and there for settles fast. When the weight does push down on it is called compaction. If water soaks in and it is not completely in rock form the water will dissolve parts of the sediment. When two or more pieces of sedimentary rock fuse together it is called cementation.