Topaz Mineral Project
By: Amy Him, Block 7
What is a Mineral?
A mineral is a naturally occurring, inorganic, definite chemical composition, crystalline structured, solid substance.
Properties of a Mineral!
Properties of Minerals are hardness, form, structure, diaphaneity, special properties, fracture, cleavage, streak, luster, and color.
Hardness-8 (Moh's Scale)
Hardness is how easily an mineral can be scracthed.
Form- formed when fluid vapors turn into igneous rocks
Form is how it was made.
Structure is always Crystal or it wouldn't be a mineral.
Diaphaneity is how transparent or opaque it is.
Special properties are different for each mineral.
Fracture or Cleavage is how many times it can be cut in half.
Streak is the color of the mineral when it is powdered.
Luster is how much light reflects off the mineral.
Color-Colorless, yellow orange, red-brown, light to dark blue, pink-red, red, violet, light green
Color is the first property you notice.
Taste- If it is edible then it has a taste.
Radioactivity- If it has radioactivity in it it has this property.
Magnetic- If it attacks magnets then it is magnetic.
Double Refraction- If you can see double through the mineral it has double refraction.
Acid Test- It is how it reacts to acid.
Fluorescence- If a mineral can glow under a ultraviolet light it is fluorescent.
Smell- If it smells strong then it has this special property.
The mineral Topaz has the special property of fluorescence because it can glow under a ultraviolent light.
Topaz can be found in the United States, South America (Brazil), or even Europe (Germany and Russia).
"Topaz Gemstone Information." Topaz Gemstone Information. GemSelect.com, 6 Oct. 2010. Web. 08 Nov. 2013.
"Topaz (mineral)." Encyclopedia Britannica Online. Encyclopedia Britannica, n.d. Web. 08 Nov. 2013.
"Mineral Description : Topaz." Mineral Description : Topaz. N.p., n.d. Web. 08 Nov. 2013.
"Topaz Mineral Data." Topaz Mineral Data. N.p., n.d. Web. 08 Nov. 2013.