Corundum by Maysen Hauck

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Slide Notes

Corundum

Published on Nov 22, 2015

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PRESENTATION OUTLINE

CORUNDUM

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THE CHEMICAL FORMULA

Al2 O3

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MINERAL GROUP FOR CORUNDUM

Oxides/simple Oxides

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HARDNESS

It is high in hardness being a 9.

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SPECIFIC GRAVITY

It has a high gravity of 3.9-4.1

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TRANSPARENCY

It is transparent to opaque.

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ELEMENTS IN CORUNDUM

The elements are aluminum oxide.

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THE WAY CORUNDUM IS MINED

It is mined from gravel deposits.

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USES FOR CORUNDUM➡️

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Corundum can be turned into Rubies, Sapphires, and Emery. It has electrical uses. It can also polish metals. It can be made into sandpaper.

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COLOR

It can be lots of colors. It's normally bright colors.

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STREAK

It is colorless but some times it can be white.

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LUSTER

Vitreous to adamant.

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CLEAVAGE

None.

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CLASS

Oxides and hydroxides

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CORUNDUM CAN BE FOUND IN

South African contries and some can be found in the USA.

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THE VALUE OF CORUNDUM

It depends on its size. Here are some charts about there size.➡️

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Untitled Slide

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THE SHAPE OF CORUNDUM

Hexagonal.

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I found my information on minerals.net
geo.utexas.edu
merriam-webster.com
geo.bgy.com
galleries.com
eos.ubc.ca

Photo by Guillaume Lemoine

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