In 1948 and 1949 there were a couple of tents next to the 2 middens on the flats above the beach. They were from the University of California. They were analyzing the contents of the middens. They dated the middens at more than 10,000 years old, some of the earliest known campsites in North America. Jade was evidently used as a cooking stone for millennia, because it had a high specific heat. How the indians knew that is an open question.
I found black jade at jade cove in 2000. It was very smooth and light brown on the outside. There were no surface cracks or bumps. It was about as big around as a pencil and maybe 1 1/2 inches long. I sawed it in half with a diamond band saw. That took at least an hour and the motor was smoking when I finished. Inside it was jet black. I polished one half into a nice little cabachon. That took a long time because jade is so tough. If it was serpentine, like this guy is showing, it would have taken 15 minutes.
Ridiculous! That's all serpentine, not jade. Scratch it with a sharp nail, or do a density test. Jade cove has serpentine cliffs. You can find lots of serpentine (bowenite) and tumble it like this guy. But none of it is jade.
@@bobbobby01234 Put it on a steel plate or anvil and hit it with all your force with a heavy steel hammer. How many pieces does your green rock break into? Nephrite jade will not get smashed. You will still have one stone. Your serpentine will shatter into more pieces than you can count. I have been polishing jade for 50+ years.
Attention there is Black Diamond from space here you have to do the hardness test
In 1948 and 1949 there were a couple of tents next to the 2 middens on the flats above the beach. They were from the University of California. They were analyzing the contents of the middens. They dated the middens at more than 10,000 years old, some of the earliest known campsites in North America. Jade was evidently used as a cooking stone for millennia, because it had a high specific heat. How the indians knew that is an open question.
> How the indians knew that is an open question.
Not that open; it's called trial and error.
I love Jade 💚
Can you find black jade or green jade on southern CA. beaches?
I found black jade at jade cove in 2000. It was very smooth and light brown on the outside. There were no surface cracks or bumps. It was about as big around as a pencil and maybe 1 1/2 inches long. I sawed it in half with a diamond band saw. That took at least an hour and the motor was smoking when I finished. Inside it was jet black. I polished one half into a nice little cabachon. That took a long time because jade is so tough. If it was serpentine, like this guy is showing, it would have taken 15 minutes.
Sitting on over 1000 pounds Big Sur Jade. collected in the 40’s. Trying to figure out how to get a value
more green， more clear， more smooth， more vaule
Are you trying to depleat the area of nephrite jade?
@@Sassyone-522 did you read what I said? this was self collected in the 70s or earlier I hate people who don’t know how to read
So many illiterate people on the Internet nowadays
Parabéns pelo conteúdo
💓💓💓❤️💓❤️❤️💎
Sucesso sucesso sucesso sucesso
Show Man for Brasil 🇧🇷🇧🇷🇧🇷🇧🇷🇧🇷👆
huh?
These are all nephrite
Ridiculous! That's all serpentine, not jade. Scratch it with a sharp nail, or do a density test. Jade cove has serpentine cliffs. You can find lots of serpentine (bowenite) and tumble it like this guy. But none of it is jade.
Most of it is jade: Nephrite, not jadeite
@@bobbobby01234 Put it on a steel plate or anvil and hit it with all your force with a heavy steel hammer. How many pieces does your green rock break into? Nephrite jade will not get smashed. You will still have one stone. Your serpentine will shatter into more pieces than you can count. I have been polishing jade for 50+ years.