Because of this, luster is the first fundamental test to be made when identifying any mineral. Although it is a noticeable characteristic of a mineral, it should never be its defining attribute since impurities can cause so much change in its color and it might fool us.
Write the name of the mineral on the Mineral Worksheet. Lapis Lazuli Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history. Feldspar cleaves in two directions, and quartz cleaves in three directions or, they Mineral identification worksheet in different directions Why is it often difficult to identify minerals by looking at the shape of their crystals?
Students will be assessed according to their ability to: Assign each group to a mineral station and have students move to their assigned station to begin testing.
Can the students correctly name each of the minerals using their test results? Understanding their origin and how they change allows us to begin to understand the Earth and its processes. Images, code, and content on this website are property of Geology.
Iron, or magnesium, or ferromagnetic silicates What mineral property are you testing when you try to scratch a mineral? Fill your yogurt container to the brim and place it in a bowl. The Sedimentary Rock Identification Key divides the sedimentary rocks into detrital and chemical types.
Students will then be told that there is a sixth way to test a mineral through a test of its hardness. Believe it or not, rocks can be soft! Identify the igneous rock samples: The Moh's Scale is used to measure what mineral property?
Take the piece of white tile and put it on a flat surface. Each station should be equipped with one each of the following items: The sheets should include the name of the minerals and their physical properties.
Have student groups move to the mineral stations with one group of students at each station. Have students read the Mineral Background sheet. More Essay Examples on Minerals Rubric Based from the information gathered, we can determine and differentiate the identity of a mineral by recognizing its color and streak, computing for its specific gravity, observing its luster, knowing whether it cleaves or fractures, testing its hardness, and verifying if it reacts to hydrochloric acid.
Good examples include hematite always red-brown no matter what form it's in and chromite distinguished from the hundreds of other black minerals by its chocolate-brown streak.
Do you know what they are?
Pre-lab intro … prior knowledge questions [10 min] 2. Hardness in minerals can vary due to impurities, but is usually diagnostic. As students enter the classroom, have them turn on their computers and go to www.
Distribute a Mineral Worksheet and Mineral Background sheet to each student. There are many subtle differences in the non-metallic lusters, but most are relatively dull, and are often transparent to translucent on thin edges.Mineral Identification Lab Introduction In this lab activity you will become familiar with minerals and identifying their different properties.
This lab will also introduce you to the deductive process where you will utilize the results of each property to identify the name of the mineral from an established key. Mineral Identification Elucidates the properties that allow us to identify minerals such as color, streak, luster, density, hardness, cleavage, fracture, and others.
Progress. Divide students into equal groups. Have the number of student groups match the number of mineral stations. Distribute to each student a Mineral Worksheet and Mineral Background sheet.
b. mineral identification A mineral is a naturally occurring, inorganic substance that has an orderly internal arrangement of atoms and a definite chemical composition that may vary within certain limits. Lab A - C & Exam 1 This "virtual rock box" is an online study tool to help you prepare for Labs A, B, C and the Rock and Mineral Identification exam in EASC Use the navigation on the left to study the minerals and rocks in that category.
Mineral Identification Worksheet Assuming you have opened the simulation and printed this worksheet and the Mineral Identification Job Aid, do the following: 1. Conduct all tests on the minerals in the virtual lab.
Minerals in the virtual lab are numbered Keep track of which mineral you are working with as you record your observations.Download