Fantastic work again. Thank you for your excellent research and sharing these stories that many of us don't have access to. It's a pleasure to have such a sharp speaker as Wim to brighten up a topic that could be drier than dust from a less practiced or compelling speaker.
@blaineniko9043
3 жыл бұрын
a tip : watch movies on Flixzone. I've been using them for watching lots of of movies these days.
@maddoxzakai2479
3 жыл бұрын
@Blaine Niko Definitely, have been watching on flixzone} for months myself :)
@hanjijewelry1826
3 жыл бұрын
Thank you so much for sharing the knowledge!
@vhg7
3 жыл бұрын
Another great video. Thank you for posting. On the question of emerald finding in Sri Lanka and why the lack of chromium host rocks would not support this, not all emeralds are colored by chromium. Vanadium is often the trace elements behind the green coloration of emeralds found outside of Colombia. This just my thought on the matter, but have heard that Sri Lanka is blessed with all types of gems with the exception of emeralds so what it's said in this webinar could be the reason.
@charlessavoie2367
Жыл бұрын
No diamonds or opals either.
@hannamakela6989
5 ай бұрын
Fascinating! Thank you for the wonderful contextualization! My fascination with gemstones has more to do with the history and the geography of them than their aesthetic value (even though the c's are nice, of course;)).
@cristinalago1981
3 жыл бұрын
another great video! thanks!
@emanuellandeholm5657
Жыл бұрын
Love your geology videos! I knew about pegmatites (in felsic rocks) hosting a lot of gem minerals, but I had no idea about chromium and vanadium occurring only in mafic rock. You really need a felsic intrusion into basically basalt in order to make the cake. Fascinating!
@charlessavoie2367
Жыл бұрын
I thought peridot from St. John's island was the only green stone from Egypt. Tsavorite has emerged as a substitute/competitor to emerald. Its maximum sizes are less than emeralds.
@ModernProspector
11 ай бұрын
Chrome diopside is my favorite substitute. Better color, less likely to have inclusions, and cheaper.
@9fiveb180
2 жыл бұрын
If I were in charge of doing the ordering of the workers gear at the Zambian mines....... The extraction teams gloves would definitely NOT be Emerald green. None of the gear would be green period. Mostly everything would be day-glow red or chrome yellow. This would be beneficial for their physical safety being in a construction zone with explosives and heavy equipment around, AND it would help the workers doing the sifting through the recently blasted material to more easily and quickly distinguish the gemstones from the surrounding host material. The use of complementary colors to whichever gem is being sought (Emeralds in this case) helps the human eye to locate with greater accuracy that target gem material. It's little adjustments like that which help increase overall gains in rough gem material, and decrease losses of life, time, money, AND rough gem material. It's true.
@al-irfangemstones1376
3 жыл бұрын
kindly dubbed it in urdu، or organise a webinar in urdu, or write subtitle in urdu plz
@AKhanan
3 жыл бұрын
very informative video. sir i m from swat. and i m also gemologist and working on Emeralds business
@krishnamraju9259
3 жыл бұрын
Sir shall I take with youw
@geoffgeoff143
3 жыл бұрын
I quite like the format. Some presenters are so vain, they think their face is more important to show than the info they are presenting.
@amoromar9404
3 жыл бұрын
to this day no Afghan government and no Afghan nation have accepted Swat valley as part of Pakistan, the legitimacy of the so- called Durand Line dividing Afghanistan and India in 1893, please GIA be care about history of Afghanistan which has more than 5000 years history.
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