borang mineral ekonomis

8th MINERALOGY (ECONOMIC SESSION)

CLASSIFICATION PAPER

Name: Ernanda Nim: 12/334709/PA/14941

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On Tuesday 07/05/2013, I did the mineralogy labwork class for the eight term in this semester. Below was my note of my sulfide-minerals identification :I identify the mineral sample numbered: M34

The color was Green

The streak was White

The luster was Waxy

The hardness was approximately between 2,5 to 3 , because it could be scratched by a nail.

The cleavage was None

The fracture was Even

The diaphenity was Opaque

This mineral was tend to be Parramagnetic

The system of the crystal was AmorphousPicture:

After I compared the data that had been taken in labs, I argued that there were similarities on Serpentine because of because of it was specific colour, hardness, and luster. And, this mineral is economically valuable because it was can be used as precious stones and medical therapy. Genesis serpentine was the process of hydrothermal alteration minerals FerroMagnesian (Fe, Mg) such as olivine, pyroxene, amphibol. But primarily olivine.




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On Tuesday 07/05/2013, I did the mineralogy labwork class for the eight term in this semester. Below was my note of my sulfide-minerals identification :

I identify the mineral sample numbered: M52

The color was Black

The streak was Black

The luster was Sub-Metallic

The hardness was approximately between 5,5 to 6 , because it could be scratched by steel blade


The fracture was Uneven



The system of the crystal was Tetrahedal

Picture:

After I compared the data that had been taken in labs, I argued that there was/were any/some different/similarities on Mangan because of it was specific colour, hardness, luster and our hand would be dirty if touched

And, this mineral is economically valuable because Manganese was also used for the production of dry batteries, ceramic, glass and Steel industrial raw materials.

Manganese genesis formed by the volcanic activity (magmatism 20%) which was then associated with Limestone Manganese. Besides the amount of manganese was largely formed at sea in the form of nodules or balls associated with igneous volcanology results submarine volcano.




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The color was White


The luster was Vitreous

The hardness was approximately between 5,5 to 6 , because it could be scratched by glass


The fracture was Conchoidal

The diaphenity was Translucent

This mineral was tend to be Diamagnetic

The system of the crystal was Trigonal

Picture:

After I compared the data that had been taken in labs, I argued that there was/were any/some different/similarities on Quartz because of it was specific colour, hardness, luster

And, this mineral is economically valuable because quartz used as glass raw materials , optics, ceramics, industrial paints, cement, some precious stones and medical therapy.

Quartz mineral formation process through which the acidic magma freeze after the magmatism along with a decrease in temperature due to the absorption of heat by the rock and the pressure drop due to increase distance from the magma chamber so minerals quartz formed




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The color was Yellow

The streak was Greenish Black

The luster was Metallic

The hardness was approximately between 3,5 to 4 , because it could be scratched by coins





The system of the crystal was Orthorombic

Picture:

After I compared the data that had been taken in labs, I argued that there was/were any/some different/similarities on Calchopyrite because of it was specific colour, hardness, luster

And, this mineral is economically valuable because As the primary copper ore mineral and Chalcopyrite also produces byproducts , namely gold and silver .

Mineral chalcopyrite was one type of sulfide minerals formed from compound elements Cu, Fe and S that occured due to hydrothermal process, in which magma in the form of volatile element in the form of gases and vapors that contain elements of S, Fe, and Cu were reacted with elements derived from hydrothermal solutions.




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The color was Green


The luster was Dull

The hardness was approximately between 3 to 3,5 , because it could be scratched by needle




This mineral was tend to be Diamagnetic

The system of the crystal was Amorf

Picture:

After I compared the data that had been taken in labs, I argued that there was/were any/some different/similarities on Zeolith because of it was specific colour, hardness, luster

And, this mineral is economically valuable because reduce levels of iron and manganese in the water, Increasing levels of oxygen and fertilization.

Zeolites were formed due to volcanic ash sedimentation on alkaline lake environments (salt water), process disgenetik (metamorphosis low level), and the process didrotermal. Generally these sediments millions of years old.




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The color was Yellow

The streak was Black

The luster was Metallic

The hardness was approximately between 6 to 7 , because it could be scratched by steel fisted


The fracture was Conchoidal



The system of the crystal was Isometric

Picture:

After I compared the data that had been taken in labs, I argued that there was/were any/some different/similarities on Pyrite because of it was specific colour, hardness, luster

And, this mineral is economically valuable because Phyrite used in the manufacture of sulfuric acid and sulfur dioxide , dust grains of pyrite has been used to recover iron , gold , copper , chemical element / cobalt , nickel . It could be used to make inexpensive jewelry items .

Pyrite could be formed as a result of primary sulfur reduction by soil organisms and water containing iron ions. It influenced by the supply of primary sulfur has been reduced, the iron ion and a suitable place for the establishment.

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