Fun with Fluorescence!

seaurchin · Aug 13, 2020

That is so cool. I love fluorescence!

mommylawyer · Sep 6, 2020

This seems like a good place for a fluorescence question: If a pink spinel has faint red fluorescence, would it be noticeable in bright sunlight?

JackTrick · Sep 6, 2020

mommylawyer said:
This seems like a good place for a fluorescence question: If a pink spinel has faint red fluorescence, would it be noticeable in bright sunlight?

I don’t believe so, no.

mommylawyer · Sep 7, 2020

JackTrick said:
I don’t believe so, no.

Thank you.

glitterata · Sep 8, 2020

I found a pair of what I believe are Sri Lankan hairpins with pink sapphires/rubies set in gilt silver, from c. 1900. The stones fluoresce a beautiful red. (Here I'm shining the blacklight on one of the hairpins in a dim but not dark room. The shots I took in the complete dark came out really blurry.)

Rfisher · Dec 11, 2020

Peach Sapphire

LD · Dec 11, 2020

Can I play? I love love love love fluor and actually I look for it in diamonds. I don't know why but it must be the coloured stoner in me! Here's a few of mine:

6.5ct Ruby

Grey Diamond Heart Cut (I think this is just under 1ct)

Neptune · Dec 12, 2020

Medium fluorescence diamond, spinel, & ruby under UV light. Don't know why the diamond glows blue and green under the same condition.

Afternoon sun light through the window

ItzLog · Dec 12, 2020

To be honest, I'm not quite sure what these are

But they glow bright!!

Nosean · Dec 13, 2020

GIA Fancy intense pink 0,09 ct from Leibish.

Strong LW blue fluorescence.

Rfisher · Mar 12, 2021

Fun little lonely guy

MissyBeaucoup · Mar 13, 2021

@Rfisher @Nosean @ItzLog @Neptune @LD @glitterata @fiona00004 @Lexililac

Thanks for playing! It’s great to see all the new pictures!

Gemstones are so fascinating!!

Laurainthesky · Mar 14, 2021

My ebay yellow sapphire surprised me. I didn't expect it to have fluorescence. Its fluorescence was an orangey red under long and a milder orange yellow under short. I looked it up and yellow Sri Lankan sapphires have fluorescence like this.
I wonder how BE treating affects fluorescence. I couldn't find any articles on that topic. I paid a BE price for the sapphire which was sold as heated only.

I was also surprised that my commercial grade ruby outshined everything.

Neptune · Mar 14, 2021

MissyBeaucoup said:
@Rfisher @Nosean @ItzLog @Neptune @LD @glitterata @fiona00004 @Lexililac

Thanks for playing! It’s great to see all the new pictures!

Gemstones are so fascinating!!

I thought of you when I saw this since I read that you like to grow them. I don't have any myself but they are spectacular, if you get it right. lol. It's a fuzzy plant.

Laurainthesky · Mar 16, 2021

I couldn't manage a picture, but I was surprised that my ebay tsavorite had fluorescence while my higher quality one was inert. The ebay one is a lighter tone, so maybe it is just different.

Nosean · Mar 17, 2021

Laurainthesky said:
I couldn't manage a picture, but I was surprised that my ebay tsavorite had fluorescence while my higher quality one was inert. The ebay one is a lighter tone, so maybe it is just different.

Your ebay stone has a low iron content. Tsavorite and Merelani Mint are grossulare garnet colored by vanadium. Merelani Mint has a very low iron content - some lighter colored Tsavorite too. The deeper colored Tsavorite shows no fluorescence except a rare variety with a higher chromium content from Kuranze.

Colorless grossular shows fluorescence - the rare colorless Mali garnet (a mix of grossular and andradite) no (iron) .

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Laurainthesky · Mar 17, 2021

Nosean said:
Your ebay stone has a low iron content. Tsavorite and Merelani Mint are grossulare garnet colored by vanadium. Merelani Mint has a very low iron content - some lighter colored Tsavorite too. The deeper colored Tsavorite shows no fluorescence except a rare variety with a higher chromium content from Kuranze.

Colorless grossular shows fluorescence - the rare colorless Mali garnet (a mix of grossular and andradite) no (iron) .

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Cool! Thank you.

rokor · Mar 18, 2021

Here’s a tennis bracelet I recently acquired and a loose ruby. Both are surprisingly fluorescent, I wasn’t expecting either to glow so much.

idola · May 23, 2021

I got a black light today and decided to have a look

My padparadschas are obnoxiously pink. I knew that a couple of the diamonds on my ring would be strong because of how they look in sunlight so I was pleased to see that I'm right.

Then a few other pieces:

Lavender spinel, oiled emerald, and blue sapphire. Was surprised to see the blue turn pink, even if only a little!

CaseyLouLou · Jan 10, 2022

Here’s are two of my hot pink spinels that fluoresce. I have had the ring since at least the early 90’s and never knew!

ItsMainelyYou · Jan 10, 2022

Welp, I need a UV light now.

Nosean · Jan 15, 2022

A vivid Green Yellow diamond in direct winter sun.

LilAlex · Jan 17, 2022

LD said:
it must be the coloured stoner in me!

This is great -- gonna use that!

Well, carefully, on second thought...

CaseyLouLou · Jan 17, 2022

LilAlex said:
This is great -- gonna use that!

Well, carefully, on second thought...

Ha! I have a thing for pretty flower pots for garden decor and I am always saying that I have a pot addiction….

CaseyLouLou · Jan 17, 2022

Nosean said:
A vivid Green Yellow diamond in direct winter sun.

This is amazing. Why does it glow like that? Usually diamonds turn blue right? I’m fascinated.

Nosean · Jan 18, 2022

CaseyLouLou said:
This is amazing. Why does it glow like that? Usually diamonds turn blue right? I’m fascinated.

Natural-Color Green Diamonds: A Beautiful Conundrum | Gems & Gemology

Characterizes diamonds with exceptionally rare natural green color, based on GIA’s extensive database of samples.

www.gia.edu

This is diamond colored by H3 centers. well explained in the article.

Or a webinar…

CaseyLouLou · Jan 18, 2022

Nosean said:
Natural-Color Green Diamonds: A Beautiful Conundrum | Gems & Gemology

Characterizes diamonds with exceptionally rare natural green color, based on GIA’s extensive database of samples.

www.gia.edu

This is diamond colored by H3 centers. well explained in the article.

Or a webinar…