Many thanks for your kindheaкted attention for the people who are begginers in gemmology. Really great work!! Many thanks!! Sergio (Saint-Petersburg, Russia)
I want to tell you this video has changed my LIFE. Hard to imagine. I am in my third week of colored stones at GIA. After passing my 5 Stone for Graduate in Diamonds I was feeling more confident and positive starting gems. That quickly changed and my fear of falling behind because lack of/ non-existing VISUAL Instruction was not available. Your knowledge and skill is EXTREMELY appreciated! Again, thank you. I hope to find more videos on particulars of Gem Identing.
Am very new to this, but picking up gem collecting as a hobby. Have decided that it's time I was able to test the things I'm purchasing so I can have confidence as to what they actually are. Greatly enjoyed this presentation, Mr. Hodgson. One of the best training videos, of any kind, I've ever viewed. And I'm a certified trainer in a completely different field, myself.
Great instructional video! Some uses of testing equipment such as the polariscope in books I own are hard to understand, your videos are a great resource!
Wow, thank you so much for the uploaded video of the whole explanation of single versus double refraction under a polariscope. I couldn't make sense of how it was done when I don't have the equipment myself at home because of online learning, but it made me understood how I will test it once we're allowed to be back on campus.
Thanks for taking the time to make this tutorial! Very good, I really appreciate it :^) I am looking into gem certification in the future through IGS. So exciting to learn about gems.
Thank you SO much! Again another great informative video. I Just received a polariscope for father's day(hobbyist). I've been relying on RI , SG &old microscope to help me identify mtrls. With isotropic gems you mention opals. (generally) Does this include the crystal opals? I have a nice 3 ct "water clear" Ethiopian crystal opal that is not showing this effect. Everything else is right on but the polariscope. Getting diffused light w/ No flash or banding. Any ideas? I guess maybe i'll look into financial aid & sign up for those GIA classes I been talking about.So cool. Thanks again . Rob T
Thanks so much for an amazing awesome video. I give you a thousand thanks for such awesome video, made with such practical and didactic illustrations. I wish all the best, health, love, prosperity and fortune. God Bless you.
Very intersting and informative. Novice here just begining here and this is all very helpful, so thank you. Can you tell us about the lamp you are seen using in this video please?
i am gem dealer in africa and to the arabic golf so it is video will learned me bat i don't know how to clean the stone opal can u help me of that thanks
hello have a nice day What are the most important devices that can be purchased to accurately determine the type of gemstone. I work in selling gemstones, I don't want expensive devices because I can't buy them Thank you all
Interesting video, though you could possibly use some proofreading beforehand. I'm sure you meant 'birefringence', not 'biofringence', though 'biofringence' does sound interesting in and of itself (life forms refracting light). Also, it's a 'polarizing' filter, not a 'polaroid' filter. The more accurate you are with your presentation, the more veracity you manifest in your vocation.
![How do you KNOW what a gem is? [Refractometer Tutorial]](http://i.ytimg.com/vi/egpxFVwtNRo/mqdefault.jpg)
Excellent information and explained well. Worth watching.
I m from india I m gemology students ... Your information is very helpful for gemological students ..Good luck for your next videos.. thanx
SIDDHARTH POTDAR thanks a good luck with your studies!
Many thanks for your kindheaкted attention for the people who are begginers in gemmology. Really great work!! Many thanks!!
Sergio (Saint-Petersburg, Russia)
Thank you very much. You are a good teacher.
I want to tell you this video has changed my LIFE. Hard to imagine. I am in my third week of colored stones at GIA. After passing my 5 Stone for Graduate in Diamonds I was feeling more confident and positive starting gems. That quickly changed and my fear of falling behind because lack of/ non-existing VISUAL Instruction was not available. Your knowledge and skill is EXTREMELY appreciated! Again, thank you. I hope to find more videos on particulars of Gem Identing.
I was a gem Dealer In SriLanka before I MOVE to United States. I glad to say I learned lot of things from this video.
Thanks Happy to hear that!
you are welcome..
+Rohan Hettiarachchi very useful video.. I m also like to do gem business .
I learn it much more systematically than I did in GIC class....I love gems
Am very new to this, but picking up gem collecting as a hobby. Have decided that it's time I was able to test the things I'm purchasing so I can have confidence as to what they actually are. Greatly enjoyed this presentation, Mr. Hodgson. One of the best training videos, of any kind, I've ever viewed. And I'm a certified trainer in a completely different field, myself.
Great instructional video! Some uses of testing equipment such as the polariscope in books I own are hard to understand, your videos are a great resource!
Good video. Very informative.
So nice of YOU ❤️ Sir for such nice information in such a nice way
Lovely to hear Nick's voice on TH-cam, he's one of my best costumers, I have always loved doing business with him. Subscribed.
How nice and helpfull thanx for all info Mr Nick 🙏🏻
Wow, thank you so much for the uploaded video of the whole explanation of single versus double refraction under a polariscope. I couldn't make sense of how it was done when I don't have the equipment myself at home because of online learning, but it made me understood how I will test it once we're allowed to be back on campus.
It is an very important equipment in gem Business
Thanks for taking the time to make this tutorial! Very good, I really appreciate it :^) I am looking into gem certification in the future through IGS. So exciting to learn about gems.
Great video, I’ve learned so much from this. Many thanks
Very good tutorial for laymen, students and jewelers......thanks!
Pleasure! More coming!
This was really interesting and educational. I deeply enjoyed the simple explanation. please do more!!!
Good job👍
great video, a tonne of information
I love your video , learned a lot, thank you for posting
Great video Astrogems.
fabulous video astrogems. Very informative and helpful i think i will go out and buy a polariscope .
excellent explanation
great video, thanks!
Thanks - there will be more coming!
Great Video, thanks so much
Fantastic Tutorial. Very interesting.
Thank you SO much! Again another great informative video. I Just received a polariscope for father's day(hobbyist). I've been relying on RI , SG &old microscope to help me identify mtrls.
With isotropic gems you mention opals. (generally) Does this include the crystal opals? I have a nice 3 ct "water clear" Ethiopian crystal opal that is not showing this effect. Everything else is right on but the polariscope. Getting diffused light w/ No flash or banding. Any ideas?
I guess maybe i'll look into financial aid & sign up for those GIA classes I been talking about.So cool.
Thanks again . Rob T
Thank you very much .❤
Thanks so much for an amazing awesome video.
I give you a thousand thanks for such awesome video, made with such practical and didactic illustrations.
I wish all the best, health, love, prosperity and fortune.
God Bless you.
Octavio Holguin thanks for your feed back we are so happy you enjoyed it !
Thank you sir
Thank you so much !!!
Grate lesson Thank you very much sir
Good and Honest of knowledge and thinking.
Thanks so much - More coming!
Good Stuff,THANK YOU !!!!!
12:20 "usually"?! (in the caption)
I want to see a single refractive gem stone blinking during rotation.
its a very good lesson to me sir
Very intersting and informative. Novice here just begining here and this is all very helpful, so thank you. Can you tell us about the lamp you are seen using in this video please?
Wow amazing
i am gem dealer in africa and to the arabic golf so it is video will learned me bat i don't know how to clean the stone opal can u help me of that thanks
How to buy that equipment
You need a truck full of money or a good moment of good luck.
Take care.
Cheers!.
hello have a nice day
What are the most important devices that can be purchased to accurately determine the type of gemstone. I work in selling gemstones, I don't want expensive devices because I can't buy them
Thank you all
thanks
does lab created(mohs 10)diamond shows same as real? Helpfull vid
Interesting video, though you could possibly use some proofreading beforehand. I'm sure you meant 'birefringence', not 'biofringence', though 'biofringence' does sound interesting in and of itself (life forms refracting light).
Also, it's a 'polarizing' filter, not a 'polaroid' filter.
The more accurate you are with your presentation, the more veracity you manifest in your vocation.
Also feel welcome to visit our Facebook page at facebook.com/astrogems?ref=hl
music TATU
Why the awful music ?
Polaroid is a brand