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This is a College Paper I did for
Blue Planet – Environmental Science 101 Class
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I have to start with this one on the right. This is my large white quartz crystal which is 9" tall. I purchased it in 2003 for $30 from man along side the road in El Prado; it comes from Arkansas, and was dug up by his friend some time in 2002. The rock crystals I have pictured here and following are clear or milky white. My large quartz crystal is white. It’s interesting that all the quartz crystals have hexagonal faces from really large to very tiny. (Borelli and Cipriani, 1986). |
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“When crystal quartz is cut at a particular angle to its axis, pressure on it generates a minute electrical charge. This effect makes quartz of great usefulness in the electronics industry and clocks. It is so useful that it is now grown in laboratories.” Quartz sand is used to make glass. (Shaffer and Zim, 2001). |
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(right) Quartz crystal purchased in 2005 on eBay. It is 2½ inches long also from
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Quartz crystal pyramid cut to shape (right),
about 2⅔ inches across at the base. Purchased on eBay; originally from Brazil, according to the seller |
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(left) Two crystals that were given to me in 2003. They are 3½" and 1¾". Originally from Brazil . |
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(right) A bunch of crystals, including amethysts purchased in 2005. The clear crystals are from China. They are now sitting outside as part of my rock garden, |
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(left) Tabby quartz crystal given to me by my friend in 2003.Broken in two; almost 3” long in all. I don’t remember where this one was originally from. But I like it a lot. It’s called a “tabby” because of its flattened shape. |
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Amethyst, purchased on eBay in 2003. Originally from
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(left) Various small amethysts. Most are from
Some were given to me by friends; the one that is a tiny cluster was purchased from eBay. One of them was apparently run through one of those rock tumblers. |
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(right) Various amethyst clusters given to me in 2003 by my friend. I believe they are from
South or
and almost 3". One of them is light in color because it was left in the sun. Now I know to not leave amethysts in the sun |
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Rose quartz point crystals, when found, are extremely valuable (Friedman, 2005). |
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Crystals/Rocks Contained in the Box Black Tourmaline: White streak, hardness is 7 to 7½; tourmaline can be transparent or opaque, and it comes in many colors. It has no cleavage. It can have a vitreous luster, but when it is black or brown it can be dull (Friedman, 2005). Most people think tourmaline is one mineral but it is in fact a group made up of several minerals (Covey, 2006). A silicate of “aluminum with boron and several other metals, it is occasionally abundant with mica and feldspars in granitic rocks” (Shaffer and Zim, 2001). Mine is columnar and striated. All I can see is that black tourmaline is called black tourmaline; no other strange names. I was told that this one comes from
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Chakra Crystals given to me by one of my sisters. |
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This is my lapis lazuli stone, which is 1½" from top to bottom. I bought this stone from the Gem and Mineral Shop in
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Fluorite comes in many different colors. The composition of fluorite is calcium fluoride; the hardness is four, its streak is white, it has a vitreous to glassy luster (Friedman, 2005).
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These were purchased and gifted to me. There are also some pieces of white sage in the box. They stones are: rough turquoise, rough malachite, double pyramid of violet fluorite (top right corner), small dome of black hematite, treated quartz, piece of opal, and rose quartz sphere. |
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Obsidian that I purchased in 2007 |
Jasper is a variety of Quartz crystal (Sofianides, 1990) and is part of the chalcedony family (Borelli and Cipriani, 1986). “The qualities are hardness and durability. They are superfine grained rocks; the grains are not visible to the naked eye” (Sofianides, 1990). Jasper is an opaque quartz and is usually red, yellow or brown or sometimes two or more of these colors together. It lines cavities, fills cracks and forms crusts (Shaffer and Zim, 2001). Its hardness is 6.5; it forms in “concretionary deposit” (Borelli and Cipriani, 1986). “In spite of its commonness, jasper has been carved into a number of rather valuable art objects, particularly in Russia, where Siberian material with alternating red and green stripes has been much used” (Pearl, 1965). Red jasper, natural rock (left) Purchased on eBay Jan. 2006. It is about 7¾” long and came from Michigan.
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Schist rocks are metamorphic rocks. Schist is found in ancient rock mountains that have been highly eroded. Schists and the minerals in them vary greatly and this depends on the original rock and how it was metamorphosed. There is nearly always mica present. If it has more mica then it’s probably was originally shale or mudstone. If it has less mica and more feldspar or quartz then it most likely started out as a sandstone (
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Galena is a sulphide of lead; its crystal system is cubic; its hardness is 2.5 and its luster is metallic but often tarnished ( “Glena is a heavy, brittle, silvery-gray mineral [and] has perfect cubic cleavage.” It was used in early crystal radio sets (Shaffer and Zim, 2001). On the left is a block of galena purchased March 10, 2007 at store near They say it came from
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Gneiss rock that I picked up along the
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Quartzites that I found along the
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More Lepidolite (wet), the top ones are about 2 to 2.5 inches, the others below are smaller. I thought they looked cool wet.
Lepidolite has a luster of vitreous to pearly, its color is violet to pale pink to white and sometimes gray or yellow. |
I own some rocks and minerals and crystals. I am basically still a beginner. As I said at the beginning of this paper I like picking up pretty and interesting rocks and I like buying pretty and interesting minerals, rocks and crystals. I did not include them all in this paper because it would have been way to long. This was very interesting doing this research and perhaps I will continue one day with the remainder of my rocks for my own information. |
Cipriani, Curzio and Alessandro Borelli. Simon & Schuster’s Guide to Gems and Precious Stones.
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Click to Visit Background from: http://www.grsites.com/textures/ AngelStar Creations * Taos, NM 87571 http://www.angelstarcreations.com This Website is Copyright angelstarcreations.com
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