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Many of those jagged-looking stones shown in this video are not rubies, but are rhodolite garnets that occur sometimes in alluvial gravels alongside the corundum. Rubies and sapphires have a completely different cleavage and luster. I'm guessing a number of these were screened at the Mason Mountain mine in Franklin, NC, as the garnet looks identical to the ones found there. It is true that many gemstones can be found in granite pegmatites, but corundums are rarely one of them. And I think the rest of the inaccuracies were covered by Darknimbus3's comments below. With matters of science, accuracy is important.

No mention of heat treating sapphires. If X-amount of heat is applied to a sapphire the color usually changes. It also sets that color. A heated sapphire, in, for example, a ring, that has been taken in for repairs, can withstand the heat needed for the repair without changing the color of the sapphire. A non-heat treated sapphire must either be pulled or protected, from the heat needed for the repair or the sapphire will change color. And the owner will be very upset. When you find a sapphire that appears to show a certain color, after heat treating, can become a completely different color. If you choose to not heat treat your finds it is a good idea to tell any jeweler working on it that it is a non-heat treated stone so they know to protect it. There by avoiding an unwanted color change. Sapphires, like diamonds, can take the direct heat of a torch.

Ok there is a lot to correct here, particularly in terms of identifying signs for rubies/sapphires. 1) Quartz is not necessarily an indicator! Quartz is almost in every stream. As a matter of fact, in the primary deposit, quartz will not be found with corundum, as corundum forms in silica-poor rocks. This is because any silica will absorb the aluminum to create alumina-silicates like feldspar and mica. 2) Shale is NOT an associate with corundum. Shale is a sedimentary rock. Corundums do not form in sedimentary rock, and if they are found in sedimentary rock it would most likely be a conglomerate. Also that “mica schist” example in 3:20 is not actually schist- it’s a mica bearing pegmatite. Speaking of which…. 3) Most pegmatite is also NOT an indicator for corundum. There is sapphire-bearing pegmatite, however that is very VERY rare, and those pegmatites have no quartz. Also most pegmatites, being granitic in nature are silica rich, which goes back to my point #1 4) It’s spelled “gneiss” and “gneisses” respectively. Also it has to be the correct gneiss. Gneiss with quartz = no corundum. 5) 4:05 is spelled “zoisite” and pronounced “zow-uh-site”. Also that green ruby-zoisite is endemic to Tanzania- it’s not found anywhere else in the world. So unless you live in Tanzania, that tip is useless. Elsewhere, you’re more likely to find ruby with fuchsite. 6) 4:21 No (in the vast majority of cases), maybe, and definitely NO. There are very rare volcanics that have corundum xenocrysts, but that is extremely rare. For example, there is basalt bearing sapphire xenocrysts in Burma, and Montana sapphires come as xenocrysts from a lamprophyre. However, other than that, forget about it. Yes, certain marbles may have corundum. This will depend on the temperature and pressure conditions as well as other regional factors. As for granite, granite = quartz-rich, which goes back to point #1. Some syenites or diorites, however may bear corundum. Syenites and diorites look like granites, but are silica-poor and tend to be feldspar-rich.

So basically, just find an odd looking beat up gummy bear in streams, rivers, and lakes. Beaches too

My brother was a goldsmith and a client gave him a large glass tube full of tiny rubies as a gift. They were worthless for jewellery but he spilled them out in his glass case and displayed his pieces on them.

"...including the rivers in the regions where you live" I'm in Florida, dude. Nothing here but limerock, shells and sharksteeth😂 no hard stones😭

"keep an eye out for these 17 minerals in your area and you may find gems" 😵‍💫

If been called a human metal dectector, every time I'm in a new area of never been I'll always find eaither coins jewlery or even metal buttons

OK, so I am literally so fortunate to have a creek that runs through my property and I know there’s a shit ton of those down there I used to when I was a kid I used to play with all kinds of those rocks and I know there’s there all of the things that you said to look for Signs are all there the house that I actually live in was built in the 1700s so the creek is old and I know what I’m gonna be doing this summer. I’m gonna have to get all of the equipment that I need to start really looking and I could kick myself because a lot of those Gems like the Ruby and the sapphire and stuff like that. I played with a lot of those as a kid not even realizing that I was holding something that was super valuable and I had some that were very like perfect in shape and really great color and I didn’t even realize it, but now that I know I will be able to go and find some

I live in Queensland- we literally have a town named Sapphire, & a shop called 'That Sapphire Place'...

I've always enjoyed collecting small stones and minerals near river and creek beds. Now, thanks to this video, i know what to look out for when collecting.

In the beginning, when you said "diamonds," that was a Demantoid garnet, much rarer and valuable than diamond.

Take a strong UV flashlight there fluorescent

I got all kinds of stuff. 3 years of labor weather permitting netted 200 pounds of native platinum and bunches of stones.

Some rather large & very beautiful Garnets are often found on the River Thames in London. Mudlarkers find them there while searching for other treasures. Its believed these Garnets came from India & Asia possibly as simple Ballast in old ships.

Yes, I can. Maintenance at my complex dumps piles of rocks to use for foundation, and I find a ton of precious stones. Good times.

Stones that are good for you; if big enough; they are good right through the computer screen.

Thank you for your work Sir .

Sapphires actually do fluoresc under a black UV light just like rubies

You have to be careful with Mica, as it can be mixed with or along side of Asbestos. Sadly, where I live, most minerals are not common, as the glaciers ground up the land and left limestone and gypsum behind as well as tons and tons of sand and clay, with huge granite boulders mixed in.

Interesting, I think I will stick to buying my gemstones for my products. As they are graded and certified. But I did learn its something that takes up more time than I have.

I love all different types of UV reactive Stones also

I learnt a lot ❤❤

Thank you!

Love how you have neither a ruby or sapphire in your thumbnail 👌

I have some shiny stones I got in Tennessee that are green with black swirls in the green and one that is light green with patches of darker green in spots and red dots with silver in it.

Sapphires can be UV reactive but not typically. Quartz does not have a cleavage.

Im from Upstate NY. Is there more of a chance of me seeing them on the great lakes or a creek.

I actually found a pretty big raw ruby crystal in a rock some time ago. I didn't even know, I just liked the color and thought it was just quartz until my grandfather (who works in the gem business) told me.

I have found rubies, but still want to learn more. also how to better search it since right now I find them by just collecting all potentially good ones by using a sif to get rid of the to fine sands and such. or I use my gold pan and regularly when looking for gold find those rubies on the bottom at some stage, so tend to collect those. but could be better at recognising them all, and perhaps should take a dremmel with me to look inside of them.

Very informative and nicely narrated, thanks for sharing, thanks for the work put into the video

Garnets can form in regular old granite. They aren't as expensive as rubies or sapphires but, I still found it interesting.

The amount of possible gemstone I have toss away at creeks growing up......😒

Awesome video ❤

As a kid I used to find such stones but my family would laugh at me for saying its precious & would make me throw them back

Idk why but this felt like an AI generated video. Something felt off.

As a 73 yr old i have spent the last two summers in Montana Grizzly infested back country . Just now i realized the ones i threw back in the creek . Live and learn .

Thank u brother for the information 👍

Thank you

As a kid I found amethysts and citrines in the streams flowing down from the mountain.

Amazing, thanks for sharing

UV light also helps for opals!

Great video even for someone with a great knowledge of gems I learned something here

I think i found a very small diamond about the size of a grain but i didn't know it was a diamond and i was only 17 at that time and didn't know better and throw it away.

I used to live up north. I wish i was into panning and stuff back then. I live south now where things can be found at just the north of the state. I would have went crazy in PA.

Watching A.I voiced videos are like eating unseasoned flavorless meat. It doesn't sound like it was actually narrated by a human.

Garnets are mistaken for Ruby's, emeralds are confused with peridot, not everything that shines is a diamond!

I had my gems in my hands while I was watching the video!

So… i have a question, i am unsure if you would even be able to help me too much, but here it goes: a few years back i found a beautiful stone in a river that glowed like tropical ocean water. I figured that it was an old piece of glass and brought it home. Well, a few years later i decided on a whim to do a few tests to see if it might be some kind of gem, not glass. In these test i used a few acids which refused to react, i did scratch tests (which proved it to be harder than chromium), and the skin (now that i look closely seems to have such a fine grain checker pattern like the ruby sample you showed. The gem is nearly eye-clear aside from the riverworn seeming (might actually be growth skin) outside, with only a couple clearer sections, and a couple teeny tiny dots floating (almost need a lens to see them) Now… here is the kicker… the gem is the size of the entirety of my thumb from the knuckle up… and about the same shape, including the strange dimple bump i have on the pad. And i have decently beefy hands. … very dirty tabblecloth math came out at *roughly 80 carats? (27mmX21mmX16mm) …the tropical blue seems to have angular diachromatism in some places that make the blue arc between deeper tropical ocean blue in the depths and a nearly platinum white at edges. Would you have any clue whatsoever as to what this might be worth, where i would go to safely deal with a company even if just for an appraisal, and possibly how i would find out about local staking/mining laws and such?

Realy I like this stones

All I got that I have to pick a million unappealing stones to find an appealing stone 😅

do you have a flashlight you preffer ? im from germany and stones and gems intresstest me my howl life but i didnt start with this hobby, but i really want start with it, would be nice if i can get some help what i need to find some gems or nice looking stones :)

Did I get a hint that Dan is in this video? He licks rocks! Love his channel.

I'm in central Utah bay-BEE!! We got the GOODS!

Wow, just wow!❤

how can i easily differntciate between glass and gems?

I find it seriously hard to believe these are a easy to find as you say they are.

Cool and good to know. I bet i found a lot without knowing ):

Not quite the 2nd hardest gem material, moissanite takes that one pretty sure. Still great video 😊

I found crystallized uranium and its a big chunk that I'm keeping bc it looks cool

Too many gems in our river, but we haven't recognized them!! It's just a shiny stone twinkling in the light reflection.

"If there are rocks in the area, that's a good indicator of ruby's or sapphires."

The amount of hardness am much more than the level of ruby

Mudlarkers along the Thames river in London are always finding garnets for some reason.

I use to find garnets in a particular creek in the northwest mountains of Colorado but they were very small and a rare find was a little bit of amathist near a mine and another rock that may have been quartz but it had an light icy green tint to it. The other interesting thing was a mica mine near the top of an old logging road.

I love sparkle! and color.

I live in a place with alot of flint rock can I find eny around or near that

😀This day i found a emerald in my garden it 50%quart and 50% emerald because is grenn is normal to have some quart on it because i make test and im happy i found is a little bit damage but still a real emeral how rare is to find this gem stone?

"they're rare and expensive, but you can find them anywhere." Need someone to proofread your scripts?

Your video has so much misinformation in it I am astounded. I hope no one takes this video sireously.

And then you live in Denmark. Which have absolutely none gemstones..

One time I went to a mountain type area there was a river flowing right between the mountains, I knew very little about geology then I started searching for gemstones I searched for about an hour but had no luck or rather my technique was off

So I live in East Saint Louis, which is in southern Illinois, I live like 30 minutes from the Mississippi. I was wondering what type of rock I could find around there. Would there be rubies or sapphires? Also could you identify this rock: it looks like metal and is cold like it, but it has no sign of oxidation but has signs of weathering.

Southern ontario canada ? Can these be found?

Infinity stones

😮so buetyfull gems ❤

To bad i left the gemstone i found in my province i think its a citrine yellow stone and clear inside. It's a size of chicken egg and still rough outside

Lovely. Thank you for information about gemstones.

I find watches, stones, jewelry, and money right on the street.

I think it's an excellent video

Thanks a lot

Found a beautiful piece the size of my fist and I am so excited to go back and actually look!

What gems grow near Smokey quartz and red shell

Moisanite is the second hardest after diamond

You think i can find these stones in nearby river,i dont think so,u have to be very lucky to find these stones,gold aswell...

Thanks....

I prefer them rough raw and untouched. I have almost a hundred carat rough tsavorite and a jeweler friend of mine keeps begging me to let him cut and polish it. That I prefer to wear it rat in hardened sterling silver wire as a pendant around my neck just as it is.

Hard when there’s so much smoothed down broken glass everywhere

good

I found a perfect ruby in a rock. I split the rock, and there it was. It was fully formed. You could look through it. I gave it to my teacher who promptly "lost" it. I still hate her to this day.

🎉🎉🎉Good 👍👍👍

I have rubies and sapphire, how am I going to sell it?

By the way I still use my nail light it works to identify these stones

THANKS I KNOW AREA IN THE FRENCH ALPS ....WHICH ALL YOU SAID ARE THERE

I aeon maybe dash away what I shouldn't now I know s more thank you.

I can’t believe i used to play with sapphires for fun and now knowing 😢😢 Almost everything mineral in this video is available in my country somali specially in the bush area like a trash But we lack the equipment to recognize

Geology is a great class. I wish I would have paid more attention in school. The 70s was a crazy time to be in school. A huge waist of time.

I have 2 emerald ruff rocks that have emerald in them from Tennessee I bought .

How to send a picture I have 1 piece from Philippines