Lesson 4: Gem Formation: How are Gemstones Created?

Step 1: Introduction to Gemology

Lesson 4

Making Crystals: The Basics

To understand how crystals grow, it is helpful to actually make some. The simplest method is rock candy, which is crystallized sugar.

Take a pot of water and stir in as much sugar as you can. When you see it settling on the bottom and no more dissolves, you have reached the saturation point. The water has absorbed all the sugar it can and this condition is called super-saturated.

Next, bring the pot to boil. At boiling, the saturation level changes. The solution is no longer super-saturated and you can now add considerably more sugar. Do this; add more sugar until you again reach a super-saturation level.

Remove the pot from the stove. As the water cools to room temperature again, the amount of sugar it can hold in suspension will return to the previous level. …

Unearth The Secrets Behind The Beauty

Introducing "Discover Gemology" by IGS, the premiere introductory training for those fascinated by the magnificent world of gemology.

  • How to spot the most unique & valuable characteristics of different gemstones
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Course: Discover Gemology: Fundamentals, Tools & Meanings
Purchase Course: $49
Skill Level: beginnner
Lessons: 48
Time: 480 min