Gemology, Gems
28-November-2024 Thursday
Moissanite from AliExpress
02-October-2024 Wednesday
Popular science and simply educational literature: geology, mineralogy and other sciences about the Earth...
31-December-2023 Sunday
Tanzanite
26-November-2023 Sunday
InterGems at the AS&LS exhibition. Morganites and spores
25-November-2023 Saturday
InterGems at the AS&LS exhibition. Popular about tourmalines
08-June-2023 Thursday
Tiny Amethysts
08-June-2023 Thursday
Blue Topaz "sky blue" cut
08-June-2023 Thursday
Natural cut amethysts!
16-December-2022 Friday
How to identify genuine Chrysoprase "Chalcedony"?
07-September-2022 Wednesday
Largest white diamond ever auctioned by Christie's sells for $21,900,000
16-June-2022 Thursday
What kind of stones?
15-June-2022 Wednesday
Alexandrite effect - color change under different lighting conditions
22-March-2022 Tuesday
New hobby - gemology
13-November-2021 Saturday
The largest Zambian emerald
20-January-2019 Sunday
Introduction to stone science.
09-January-2019 Wednesday
Introduction to stone science.
08-January-2019 Tuesday
Introduction to stone science.
07-January-2019 Monday
Introduction to stone science.
06-January-2019 Sunday
An introduction to "stone science" or how to go to a jewelry store and not be deceived.
29-March-2016 Tuesday
Moissanite.
27-March-2015 Friday
Opals
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