Describe how pearl, amber and coral are formed and how they differ from most other gemstones

Description

Your assignment is to write a 250-500 word (excluding references, captions, and section headings) lesson on a Learning Objective from Lesson 22. This lesson should not be a summary of the course notes. Instead, you are expected to explain the topic in your own words in a way that will help other students learn it. The use of outside sources is encouraged. Remember to cite all your sources (including the course notes!). More information is available in the rubric on page 2–4 of this document.
Depending on which Learning Objective you have been assigned, you may have to expand on the topic as appropriate. For example, if you had the Learning Objective “Identify the prominent uses for gold, platinum group metals, and diamonds”, instead of just identifying those uses, you could do further research on why each material is appropriate for those uses.
Remember that this outside research must still be related to the course content.

****I have attached the class notes regarding pearl, amber, coral, and other gemstones below.
****Uses at least 3 different resources and all of them are reliable. *Some examples are the course content, the Gemological Institute of America, and Elements Magazine.