How to distinguish ruby and garnet
Check rubies for authenticity
Various methods can be used to check rubies for authenticity.
It is easy to test with the Presidium Gem Tester whether it fails with ruby, but it could still be a duplicate.
If you do not have such a device at hand, you can also carry out the following tests.
Exclude grenade. Magnetism is used for this. You take a strong magnet, if the stone reacts to the magnet, it is a garnet and not a ruby.
Endurance test. Ruby has a hardness of 9. If you can scratch glass with the stone, it is ruby or spinel. To recognize a spinel, you take a well-known ruby. If this can scratch the stone, it is a spinel (hardness 8) and not a ruby.
Fluorescence: A ruby glows bright red under short-wave UV light.
Density: Measure the density of the stone with a pycnometer. A ruby has a density of 3.9-4.1, spinel 3.57-3.72, glass 2.50-2.60. The density measurement can also be used to distinguish rubies from ruby doublets, since a doublet has a lower density than a ruby due to the proportion of glass.
Refractometer: Ruby has an RI of 1.757-1.779 and Spinel has an RI of 1.708-1.735.
Birefringence: spinel and garnet are single refractive, ruby birefringent (0.008)
Recognize synthetic rubies. Is rather difficult for the layman. Still, there are a few ways to differentiate syntheses from natural stones.
Extremely clear, beautiful stones and at particularly low prices will usually be syntheses.
Synthetic rubies often show the following signs. Curved stripes, elongated gas bubbles, veil-like inclusions.
In contrast to natural rubies, synthetic rubies allow short-wave UV light to pass through.
Nevertheless, you should always insist on a certificate of authenticity from a recognized laboratory for valuable rubies.
- Where can I market my Shopify website
- How many bathrooms should you have
- What tools does Quora use for deployment
- Is CBD Oil Good For Women's Health?
- What are some diseases for anemia
- What is the GATT trade agreement
- Do you think journalists are too negative
- What is Hartoel
- 1360 is a good SAT score
- People are still developing complex analyzes
- Is it worth studying advertising
- Can play iso game on Windows XP
- What helped you to overcome a fear
- The sneaky Pete TV series will continue
- What are e-learning courses
- Psychopaths sociopaths cry when they are angry
- At 36, 149 is a good IQ
- Why are flat icons so popular now
- How big the business is horse racing
- What are some magazines for publishing poetry
- What makes a muscle car
- What is 666 * 666
- How can I learn HTML quickly
- Which musical instrument should non-multitaskers learn