specific gravity

Distinguishing diamond lookalikes from the real thing can be challenging. Learn how to use specific gravity and birefringence to make...

Factors like liquid temperature and inclusions can affect a gem's density reading. These specific gravity testing techniques can improve your...

You can use an electronic scale for calculating specific gravity if you have the right accessory, a hanging basket for...

Determining a gem's specific gravity is an important identification technique. Watch this tutorial video to learn how to measure this...

Measuring specific gravity helps gemologists identify gemstones. The following table lists the specific gravity values for a variety of gem...

Gemologists sometimes measure gemstone density or specific gravity to help with gem identification. Learn the basics of this property and...

Using a balance scale to test specific gravity is a recommended practice in gemology. Learn to make your own scale...

Learn specific gravity testing methods for gem identification. Our 5-part introductory series starts with the basics and key definitions.

Learn how to modify a powder scale for specific gravity testing. A handmade wire basket will make this easy-to-use scale...

Using heavy liquids to measure a gemstone's specific gravity poses some health hazards. Learn the techniques and precautions that gemologists...

Gemstone color measurements are hard to make with conventional color-order systems. Learn how recent colorimetry tech advances have improved accuracy....

Some natural as well as synthetic gems have specific, characteristic inclusions. Learn the identifying inclusions of some of the most...

A gemstone's optic sign may be listed as either + or -. Learn whether impurities in a specific stone or...

These gemology cheat sheets review gem color and clarity grading, specific information on evaluating diamonds and opals, and basic gem...

Crystals have habits. In crystallography, mineral habits refer to the way crystals form within a specific mineral. There are six...

Topaz requires specific and unusual conditions to form. Learn how topaz develops and how it gets its colors, from yellow...

Taking polariscope readings can be challenging. In this tutorial video, you'll learn how to use this tool and which gems...

Taking spectroscope readings can be challenging. This tutorial video will teach you different techniques you can use to view a...

This refractometer tutorial video will show you how to find a gem's refractive index, birefringence, optic character, and other properties....

Yttrium (YAG) is also known as various other names in the gemstone market today such as diamonite. This may also...

How can you be sure that a piece of opal for sale is genuine? Learn about the major types of...

Suggestions for successful tips for kunzite faceting Information. Offers details on kunzite (spodumene) stones, and related issues and topics.

Suggestions for successful tips on Sphene Facet / Faceting Information. Offers information on Sphene stones and related details, tips, tricks...

The optical properties of gems attract our eyes and can give a cut stone a unique character. However, gemstone physical...

Helpful information such as successful tips and details on how to Spinel Facet gemstones. Essential information and guides necessary for...

No one to date has a total inventory, or a complete database, of gems and all their properties. Gemologists need...

Extra Siberite Tourmaline Faceting tips! Helpful information such as details, reviews, tricks, successful tips and suggestions on Siberite Tourmaline stones...

Covers essential opal faceting information and related issues, research, tips, and guides about Opal Faceting. Choose what best fits the...

A guide to Labradorite Facet Information. Essential details on Labradorite faceting which includes tips on cuts, polishes and other helpful...

Covering general and detailed information on Dravite Faceting. This article will help build your knowledge on tips and guides for...

Practical tips on Emerald Facet / Faceting Information. Covers Emerald Facet / Faceting Information related issues, news, research, tips, and...

Tips and suggestions about Pyrope Faceting. Brief details and straightforward information on Pyrope Faceting. Choose cuts that best fit Pyrope...

Some student gemologists might be unfamiliar with the microscope. This tutorial video will demonstrate how this instrument can help you...

Not sure if your gem is pleochroic? This tutorial video will teach you how to use the dichroscope to determine...

Jade is one of the most popular and expensive gemstones. It can also receive many enhancements. Learn about jade treatments...

Despite the differences in physical properties, Cubic Zirconia has maintained being an important competitor of Diamonds, with its visual similarities....

A guide to Rhodochrosite Faceting. Essential information on Rhodochrosite faceting that includes tips on cuts and polishes together with helpful...

A great informational article about tips on Orthoclase Faceting. Covers Orthoclase Faceting related issues, news, research, and much more helpful...

This covers tips and guides on Chrome Diopside faceting. Chrome Diopside has a rich green shade that rivals that of...

Gadolinium Gallium Garnet or GGG, is a crystalline material of the garnet group which may also find use in jewelry...

Some very helpful gemology tools are easy to use. Learn about the Chelsea filter, diamond tester, and other simple instruments...

Practical tips on uvarovite garnet faceting information. Covers Uvarovite Faceting & Garnet Information related issues, research and guide.

A guide to Spessartite Faceting Information. Essential information on Glass faceting that includes tips on cuts and polishes together with...

Essential Tips and suggestions about Hiddenite Tourmaline Faceting. Helpful information, details and guides on how to Facet Hiddenite Tourmaline stones....

Practical tips on Sphalerite Facet / Faceting Information. Covers Sphalerite Facet / Faceting Information related issues, news, research, tips, and...

Faceting Information such as reviews, guide, tips and tricks. Choose what best fits the criteria for Fluorite gemstones together with...

Suggestions for successful tips on Hyacinth Zircon Facet / Faceting Information. Offers details on Hyacinth Zircon stones, and related issues...

Up to date information on Scapolite Faceting. Includes helpful information such as tips, guides, reviews and details on Scapolite gemstones...