Many years ago at a rock & gem club meeting, one of the members demonstrated his method of grinding - sanding cabachons on a home-made lapidary machine. When he got to the polishing stage, he used a disc of shag rug rubber cemented to a spin disc and Cerium oxide for the polish. I have used the rug/cerium oxide method for years. The polish shine is very high/lusterous on all the cabs I did, especially agates. Just a suggestion.
So quick correction at 32:21 The physical speed is what is increasing while the RPM is what remains constant. If the wheel is running at 60 RPM the surface speed at the axis of rotation will 0 while the surface speed at 6 inches will be over 1.5 feet per second. Fantastic video, liked and subbed, I hope to see you hit 10k soon!
This has been a helpful video as I am just getting started. On some stones, like Amethyst, I get sort of a ragged edge around the cab. The 80 wheel doesn't seem to take it off but the 220 wheel seems to make it worse. Is there a technique for this?
When you described the minerals in your piece of thulite around 0:50 in the video, you said that the white mineral was calcite and is a softer mineral than the zoisite, which is true. Calcite is a 3 on the Mohs scale while zoisite is a 6.5 to 7. But the white mineral in thulite stone is NOT calcite but likely is simply quartz. Did you test your thulite with hydrochloric acid (HCl) to see if the suspected white spots of "calcite" effervesced? I tested some slabs of thulite I have with HCl and none of the white minerals were effervescent. I also tried to scratch the white mineral and compared it to a known sample of calcite that I have. The white mineral was definitely harder than a Mohs 3, so there's no way that they're calcite. They could be a plagioclase feldspar or they could be quartz. Either of which is likely since thulite is mined from an area of regional metamorphism. I bought my thulite rough from a Norwegian vendor (Hausen Rock Treasures) at the Tucson Kino gem show this year. I asked one of the company owners if the included white mineral is quartz and she confirmed that it is quartz. So the bottom line is that the two dominant minerals in thulite are of nearly equal Mohs hardness at 6.5 to 7. Didn't you notice that when you were cutting your slabs?
Thank you for your comment and I'm sorry to hear that my description of Thulite upset you. I often mention softer minerals in stones as a way to help warn people or guide stone cutters of potential pit falls that they may run into while cutting different types of stones. Yes, the Thulite that I cut did indeed have white quartz in it. That being said, I have had other samples that did indeed have a larger amount of calcite deposits. The point of the video was to guide people through the cutting process while giving them information that could help them have a higher success rate when making a cabochon. Here is my description of Thulite. Thulite (sometimes called rosaline) is a translucent, crystalline or massive pink manganese-bearing variety of the mineral zoisite. Manganese substitutes for calcium in the structure with up to two percent Mn2+.Thulite is often mottled with white calcite and occurs as veins and fracture fillings transecting many types of rock. In mineralogical literature, thulite may sometimes refer to any pink zoisite. Clinothulite is the manganese bearing variety of monoclinic clinozoisite. All the best, Michael
@@GotchaRocksJewelryDIY Thanks for your reply Michael. Your description didn't upset me, I was just trying to clarify things. I also wanted to find out if you performed any simple mineral ID tests on your slabs, which you have yet to answer. Your description of thulite is still confusing and inaccurate. What is your technical reference for this description? It conflates minerals (i.e., zoisite) with rocks (i.e., thulite). They're not synonymous. Rocks are composed of assemblages of various minerals.
Do you feel like a trim saw will work for making slabs for cabs versus using a slabbing saw. I don't know how difficult it is to get an even cut for cabbing without a slabbing saw because I've not used a trim saw before.
Nice video! Can we do a video together using my dinostones fire agate, I can send you a rough stone to cut. The stone will have dino textures that will be categorized later based on color as I grow my new channel. Keep up the good work and enjoyable content🤠
Hey man just got into gemstones I have a certified Ruby gemstone that's 955 carat I wanted to know if there is somehow I can send you the rock so you can shape and cut it for me🙏🙏 please
Hello, the templates are 35 year old that I found in Ohio. Here is a link to a company that still sells them. You will just need to order two and connect them. Thanks for watching. arrowheadlapidarysupply.com/products/gem-temp-single-templates/1608/c45/
You get what you pay for on TEMU...lots of fake "gemstones" and they don't look anything like the pictures. A few people on TH-cam have videos of lapidary materials they bought on TEMU and it was mostly bad.
![[#2024MAMA] ROSÉ (로제), Bruno Mars - APT. | Mnet 241122 방송](http://i.ytimg.com/vi/dgGqD28J6aQ/mqdefault.jpg)
Many years ago at a rock & gem club meeting, one of the members demonstrated his method of grinding - sanding cabachons on a home-made lapidary machine. When he got to the polishing stage, he used a disc of shag rug rubber cemented to a spin disc and Cerium oxide for the polish. I have used the rug/cerium oxide method for years. The polish shine is very high/lusterous on all the cabs I did, especially agates. Just a suggestion.
Thanks for the tip.
Thanks for posting. Very thorough and clear!
Great instructive video. Cab turned out great 👍
Thanks for taking the time to make this video. Very helpful for a beginner like me.
Glad it was helpful!
nice rock man and great cutting
Thanks 👍
Thank you 😊
Thanks for the video. Good guide for beginner like me 👍
Glad it was helpful!
I just ordered this machine and you presented such a great video!
How is the machine working? I just use a dremel, but I think I might try something bigger, if needed.
Enjoyed the video very much. Your explainations are very good.
Glad you enjoyed it!
Awesome!
It's troublesome, but the results are beautiful. Thanks for the detailed video.
Thank you! Cheers!
So quick correction at 32:21
The physical speed is what is increasing while the RPM is what remains constant. If the wheel is running at 60 RPM the surface speed at the axis of rotation will 0 while the surface speed at 6 inches will be over 1.5 feet per second. Fantastic video, liked and subbed, I hope to see you hit 10k soon!
Lol. Thank you I really appreciate your support. 😊
Thank you very much great video
Glad you liked it!
I have a ruby Stone would it be possible to send it to you so you can shape and cut it for me 🙏@@GotchaRocksJewelryDIY
Great video! You mentioned the type of blade was important, but I didn’t hear what type of blade you are using, other than a 6”? Thanks😊
This has been a helpful video as I am just getting started. On some stones, like Amethyst, I get sort of a ragged edge around the cab. The 80 wheel doesn't seem to take it off but the 220 wheel seems to make it worse. Is there a technique for this?
Very nice and complete. (You don't ship the rock saw to Canada?)
Hello, unfortunately I don't. But I can connect you with a Canadian dealer. May I know your location in Canada?
@@GotchaRocksJewelryDIY Fredericton NB
Good!
Thanks!
When you described the minerals in your piece of thulite around 0:50 in the video, you said that the white mineral was calcite and is a softer mineral than the zoisite, which is true. Calcite is a 3 on the Mohs scale while zoisite is a 6.5 to 7. But the white mineral in thulite stone is NOT calcite but likely is simply quartz. Did you test your thulite with hydrochloric acid (HCl) to see if the suspected white spots of "calcite" effervesced? I tested some slabs of thulite I have with HCl and none of the white minerals were effervescent. I also tried to scratch the white mineral and compared it to a known sample of calcite that I have. The white mineral was definitely harder than a Mohs 3, so there's no way that they're calcite. They could be a plagioclase feldspar or they could be quartz. Either of which is likely since thulite is mined from an area of regional metamorphism. I bought my thulite rough from a Norwegian vendor (Hausen Rock Treasures) at the Tucson Kino gem show this year. I asked one of the company owners if the included white mineral is quartz and she confirmed that it is quartz. So the bottom line is that the two dominant minerals in thulite are of nearly equal Mohs hardness at 6.5 to 7. Didn't you notice that when you were cutting your slabs?
Thank you for your comment and I'm sorry to hear that my description of Thulite upset you.
I often mention softer minerals in stones as a way to help warn people or guide stone cutters of potential pit falls that they may run into while cutting different types of stones. Yes, the Thulite that I cut did indeed have white quartz in it. That being said, I have had other samples that did indeed have a larger amount of calcite deposits.
The point of the video was to guide people through the cutting process while giving them information that could help them have a higher success rate when making a cabochon.
Here is my description of Thulite.
Thulite (sometimes called rosaline) is a translucent, crystalline or massive pink manganese-bearing variety of the mineral zoisite. Manganese substitutes for calcium in the structure with up to two percent Mn2+.Thulite is often mottled with white calcite and occurs as veins and fracture fillings transecting many types of rock. In mineralogical literature, thulite may sometimes refer to any pink zoisite. Clinothulite is the manganese bearing variety of monoclinic clinozoisite.
All the best, Michael
@@GotchaRocksJewelryDIY Thanks for your reply Michael. Your description didn't upset me, I was just trying to clarify things. I also wanted to find out if you performed any simple mineral ID tests on your slabs, which you have yet to answer. Your description of thulite is still confusing and inaccurate. What is your technical reference for this description? It conflates minerals (i.e., zoisite) with rocks (i.e., thulite). They're not synonymous. Rocks are composed of assemblages of various minerals.
Jarrod Rod Joyce from PELICAN La,💯🙏
"It's a freestyle move." xD
Do you feel like a trim saw will work for making slabs for cabs versus using a slabbing saw. I don't know how difficult it is to get an even cut for cabbing without a slabbing saw because I've not used a trim saw before.
Nice video! Can we do a video together using my dinostones fire agate, I can send you a rough stone to cut. The stone will have dino textures that will be categorized later based on color as I grow my new channel. Keep up the good work and enjoyable content🤠
I just found your channel Do you ever freeform your stones?
Yes, all the time. They are fun.
Hey man just got into gemstones I have a certified Ruby gemstone that's 955 carat I wanted to know if there is somehow I can send you the rock so you can shape and cut it for me🙏🙏 please
What kind of polish are you using on the side flat lap?
Thanks for asking I’m using Cerium oxide.
@@GotchaRocksJewelryDIY thanks. I use the white version. Is there a difference between white or pink.
As I understand it, it is the amount of manganese present in the stone. The larger the amount the pinker or more red the thulite.
@@GotchaRocksJewelryDIY thanks for the explanation. I appreciate it.
I got lots of rocks. 😊 check out some of my agates and quartz petrified wood all kinds. Rock hounding most of them
Where did you find your templates, I love that they're two sided!
Hello, the templates are 35 year old that I found in Ohio. Here is a link to a company that still sells them. You will just need to order two and connect them. Thanks for watching. arrowheadlapidarysupply.com/products/gem-temp-single-templates/1608/c45/
Just stumbled over this art and I'm so fascinated. Thank you for your video.
❤
Do u have templates for sale?
أن أمكن ماهي قيمة ماكنة الكيبنك $
I am a new on this but the cost of machines made me wonder… There are cabochon for sale on Temu 30 pcs only $10.48 and free shipping.
You get what you pay for on TEMU...lots of fake "gemstones" and they don't look anything like the pictures. A few people on TH-cam have videos of lapidary materials they bought on TEMU and it was mostly bad.
I would be suspect. I havent heard good things.
Can you use hot glue gun instead of dopping wax?
I just don’t get you Agate heads…. Turquoise is where it’s at!!!
Thats actually a great reccomendation the price is attractive but Turquoise is one of the most commonly faked or imitated minerals on the market.