Testing for Specific Gravity
Step 3: Practical Gemology Lesson 7 Back to syllabus Specific gravity testing is a technique gemologists use to differentiate and identify gems…
Specific Gravity Testing Part 4: Refining Your Specific Gravity Testing Techniques
Factors like liquid temperature and inclusions can affect a gem’s density reading. These specific gravity testing techniques can improve your…
Specific Gravity Testing Part 3: Calculating Specific Gravity with an Electronic Scale
You can use an electronic scale for calculating specific gravity if you have the right accessory, a hanging basket for measuring the weight of gems…
Specific Gravity Testing Part 2: Using a Balance Scale or a Hanneman Specific Gravity Scale
Using a balance scale to test specific gravity is a recommended practice in gemology. Learn to make your own scale or buy a Hanneman Specific Gravity…
Specific Gravity Testing Part 1: Definitions
Learn specific gravity testing methods for gem identification. Our 5-part introductory series starts with the basics and key definitions.
Specific Gravity Values of Selected Gems
Measuring specific gravity helps gemologists identify gemstones. The following table lists the specific gravity values for a variety of gem…
Specific Gravity Testing Part 1: Definitions
Step 3: Practical Gemology Lesson 7 Back to syllabus Specific gravity testing is a technique gemologists use to differentiate and identify gems…
Specific Gravity Testing Part 2: Using a Balance Scale or a Hanneman Specific Gravity Scale
Step 3: Practical Gemology Lesson 8 Back to syllabus Using a balance scale for specific gravity testing is the technique recommended by the International…
Specific Gravity Testing Part 3: Calculating Specific Gravity with an Electronic Scale
Step 3: Practical Gemology Lesson 9 Back to syllabus You can use an electronic scale for calculating specific gravity if you have the right accessory,…
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