Alex Ross. Outline. . Intro. The Name Apatite

Iron is the fourth common element. It can be found in Earth's crust and core. There is an abundant amount of iron that can be found in the stars.

Despite a family history of geophysicists and rock enthusiasts, I’ve never found the subject of rocks particularly fascinating. However, an exploration of Earth Science has lead me to the discovery that rocks are actually hidden gems (often literally), and that there’s more to the topic than one would think.

10. The minerals shown in Figure 1.12 (p. 7 lab book) are fluorite and topaz that have been tested for hardness. Use the Mohs scale in Figure 1.11 (p. 7 lab book) to identify which is fluorite and which is topaz.

Next, we can see that the rock displays a subtle porphyritic texture with plagioclase comprising the phenocrysts. The overall texture of the surrounding groundmass is granoblastic equigranular. Under thin section we also see a weakly defined foliation evidenced in the preferential alignment of actinolite grains and to a lesser extent chlorite grains. Undulose extinction is also observed in quartz indicating the rock was subject to deformation. The normalized quartz, alkali-feldspar, and plagioclase (QAP) values of this rock indicate that it is classified as a grano-diorite according to the IUGS QAPF classification system which is consistent with the hand sample interpretation.

Formoso, M. (2013). Acid Test: How to tell Minerals Apart . Retrieved January 13, 2014, from Education.com : http://www.education.com/science-fair/article/Acid-Test-How-Minerals-Apart/

Mineral |Crystal shape |Color |Density |Hardness |Streak |Fizzes in acid? | |Galena (lead ore) |Cubic/ irregular |Gray |7.5 g/mL |3 |Dark gray |No | |Gold |Irregular |Golden yellow |19.3 g/mL |3 |Yellow |No | |Graphite (pencil lead) |Irregular |Dark gray |2.2 g/mL |2 |Gray |No | |Hematite (iron ore) |Irregular |Red-brown to black |5.3

There are two types of minerals that we find in Earth - rock-forming and ore minerals.

Roasting is the most precise method, of the three conducted in the lab. The data found by each lab group was averaged with three other groups to find the unknown mineral.

The color of a mineral when it is powdered is called the streak of the mineral.

At the beginning of Salt: A World History, the author, Mark Kurlansky, describes a pink rock he got in Spain. However, this rock is not just any ordinary rock. The rock was almost completely pure salt, with only a small bit of magnesium. It had many unique qualities, which fascinate the author. Firstly, white crystals started appearing on the pink after rain fell on the rock. The rock also produced brine puddles in humid weather. Yet, it never seemed to get any smaller. When the author placed the rock on a small copper tray, the rock produced a green crust that polished the copper. At first sight, the author thought the rock was just like any other, but after only a couple days, he knew it was something special.

To find the unknown #8 Alkaline I realized that the only anion that had 4 distinct precipitate reactions for each alkaline was H2SO4, so all I had to do was react Unknown #8 with H2SO4. I did this experiment and the reactant was milky white. Based on this reaction in comparison to my previous reactions I concluded that unknown #8 alkaline was the alkaline earth Ba. This experiment was most efficient because it only took one step to figure out what my unknown was, since their was four different reaction outcomes and four different earth metal each matching to one out come this was clearly the most efficient way.

About 30 to 40 million years ago, molten, metal-bearing rock deep within the earth’s crust began to push toward the surface and formed Bingham’s ore deposit. Volcanoes erupted above the evolving ore body. This particular ore body contains primarily copper, gold, silver and molybdenum.

This project focuses on preparing samples for major and trace element analyses of the Cat Hills volcanic field. Fourteen rock samples were collected from different locations from the Cat Hills volcanic field. Whole rock samples were crushed with a Chipmunk jaw crusher to obtain gravel-sized particles. Samples were separated using sieves with a mesh spacing of 0.0037 inches and 0.0195 inches. Gravel-sized samples collected from the 0.0195 sieve fraction were leached in 5% nitric acid for 25 minutes, rinsed in distilled water, and allowed to dry. After drying, gravels were powdered using a tungsten carbide

Humankind has been fascinated with minerals and rocks as far back as we have existed. Minerals, which are referred to as the building blocks of rocks, are the foundation of almost every rock known to humans. Minerals are a naturally occurring, homogeneous inorganic solid substance having a definite chemical composition and characteristic crystalline structure, color, and hardness. In contrast to minerals, rocks are any solid mass of mineral, or mineral like matter, that occurs naturally as part of our planet (Lutgens & Tarbuck, 2014). Humans have used minerals and rocks for both decorative and practical purposes for thousands of years. Through the process of mining, humans extract these valuable minerals from within the

The group 2 metal makes up 4.1% of the Earth’s crust, making it the fifth most abundant metal, and it can only be found in compounds, such as calcium carbonate, calcium sulphate and calcium fluoride (Royal Society of Chemistry). In the body, calcium exists as calcium phosphate to provide