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Ya according to the fringe it's the 2nd HaRdeSt substance on earth..... indeed. Not in terms on mineral abrasion hardness, mineral fracture toughness, compressive fracture or tensile fracture strength...... so who knows what they were imagining when that claim popped out.

And it can be cut with quartz abrasive and copper (or just about any other metal they had at the time) as the lapping medium because quartz and felpspar are all less than about 10% the abrasion hardness of diamond. Oh and it's the volcanic equivalent (i.e. rhyolite) it can be knapped too.......

Granite Cutting and Drilling

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Send that check to the Egyptian workers at Aswan for their help.

Archae Solenhofen

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Subject Views Written By Posted
Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 3205 Racho 02-Apr-17 18:38
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 878 Fsbirdhouse 02-Apr-17 20:05
Whoever operated this saw (2:30 min mark)...made a mistake 782 Racho 04-Apr-17 14:02
Re: Whoever operated this saw (2:30 min mark)...made a mistake 767 Fsbirdhouse 04-Apr-17 14:51
If on purpose... 341 Racho 14-Apr-17 05:01
Re: If on purpose... 388 Origyptian 14-Apr-17 05:32
Re: Whoever operated this saw (2:30 min mark)...made a mistake 650 Origyptian 07-Apr-17 13:28
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 648 SandyJesse 07-Apr-17 22:42
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 415 Fsbirdhouse 09-Apr-17 16:59
Re: B 4 : ) 609 Thunderbird 05-Apr-17 05:22
Re: B 4 : ) 585 Warwick 07-Apr-17 17:50
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 650 SandyJesse 07-Apr-17 01:30
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 744 Warwick 07-Apr-17 18:03
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 828 Jon Ellison 08-Apr-17 10:53
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 525 Warwick 08-Apr-17 17:57
if I carried out a test... 609 Racho 09-Apr-17 02:15
Re: if I carried out a test... 555 Jon Ellison 09-Apr-17 08:44
I did check it out :) 464 Racho 25-Apr-17 05:59
Re: I did check it out :) 367 Origyptian 25-Apr-17 14:22
Don't even need to stop to think on this... 346 Racho 25-Apr-17 15:37
Re: Don't even need to stop to think on this... 408 Thanos5150 25-Apr-17 17:20
I believe you are a copper/bronze tool proponent 344 Racho 25-Apr-17 18:07
Re: I believe you are a copper/bronze tool proponent 441 Thanos5150 25-Apr-17 19:49
Would you agree... 386 Racho 25-Apr-17 20:29
Re: Would you agree... 430 Thanos5150 25-Apr-17 21:07
Re: Would you agree... 410 Origyptian 25-Apr-17 22:54
...just a lot of similarities at the 36 second mark and super telltale machine markings at 9:30 min mark 316 Racho 15-Oct-17 05:46
Re: ...just a lot of similarities at the 36 second mark and super telltale machine markings at 9:30 min mark 253 Jon Ellison 15-Oct-17 14:26
precision cut at 7:08 min mark...interesting photo angle I haven't seen before 322 Racho 15-Oct-17 16:49
Re: precision cut at 7:08 min mark...interesting photo angle I haven't seen before 291 Jon Ellison 15-Oct-17 19:20
Re: precision cut at 7:08 min mark...interesting photo angle I haven't seen before 301 Jon Ellison 15-Oct-17 19:35
Re: ...just a lot of similarities at the 36 second mark and super telltale machine markings at 9:30 min mark 310 Origyptian 16-Oct-17 03:27
Re: ...just a lot of similarities at the 36 second mark and super telltale machine markings at 9:30 min mark 314 Jon Ellison 16-Oct-17 07:58
Re: ...just a lot of similarities at the 36 second mark and super telltale machine markings at 9:30 min mark 282 Jon Ellison 16-Oct-17 09:19
Re: ...just a lot of similarities at the 36 second mark and super telltale machine markings at 9:30 min mark 563 Jon Ellison 16-Oct-17 11:03
an ancient quarry in France...same markings on side of a 'cliff' 90 Racho 20-Dec-19 20:04
Re: an ancient quarry in France...same markings on side of a 'cliff' 91 Martin Stower 20-Dec-19 23:47
? 75 Racho 21-Dec-19 01:25
Re: an ancient quarry in France...same markings on side of a 'cliff' 85 Open mind 21-Dec-19 02:03
Re: an ancient quarry in France...same markings on side of a 'cliff' 85 Thanos5150 21-Dec-19 04:19
Re: an ancient quarry in France...same markings on side of a 'cliff' 91 Open mind 21-Dec-19 05:07
Re: an ancient quarry in France...same markings on side of a 'cliff' 124 Thanos5150 21-Dec-19 16:25
Re: Would you agree... 618 Corpuscles 25-Apr-17 23:56
Re: if I carried out a test... 421 Warwick 09-Apr-17 15:39
Re: if I carried out a test... 465 Fsbirdhouse 09-Apr-17 22:34
Re: if I carried out a test... 378 Jon Ellison 09-Apr-17 23:20
could not have been 427 Warwick 10-Apr-17 15:34
Re: could not have been 432 Jon Ellison 10-Apr-17 16:18
Re: could not have been 470 Warwick 10-Apr-17 17:29
Re: could not have been 444 Jon Ellison 10-Apr-17 17:59
Re: could not have been 371 Warwick 10-Apr-17 18:48
Re: could not have been 381 Jon Ellison 10-Apr-17 19:18
Re: could not have been 399 Warwick 10-Apr-17 19:34
Re: could not have been 435 Jon Ellison 10-Apr-17 19:55
Re: could not have been 385 Warwick 11-Apr-17 17:29
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 413 Thanos5150 09-Apr-17 16:13
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 516 Warwick 09-Apr-17 16:42
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 432 Thanos5150 09-Apr-17 16:56
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 421 Warwick 09-Apr-17 17:21
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 482 Thanos5150 09-Apr-17 18:00
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 408 Warwick 09-Apr-17 18:06
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 438 Thanos5150 09-Apr-17 18:22
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 450 Warwick 09-Apr-17 18:31
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 425 Origyptian 09-Apr-17 20:02
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 489 Warwick 10-Apr-17 15:41
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 384 Jon Ellison 09-Apr-17 18:44
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 423 Warwick 09-Apr-17 19:03
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 410 Jon Ellison 09-Apr-17 19:17
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 440 Warwick 09-Apr-17 19:48
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 543 Jon Ellison 09-Apr-17 20:33
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 405 Warwick 10-Apr-17 15:53
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 484 Origyptian 09-Apr-17 20:06
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 512 Thanos5150 09-Apr-17 23:24
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 431 Origyptian 10-Apr-17 04:42
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 439 Jon Ellison 10-Apr-17 08:50
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 454 Origyptian 10-Apr-17 14:16
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 412 Thanos5150 10-Apr-17 15:25
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 386 Origyptian 10-Apr-17 15:44
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 443 Origyptian 10-Apr-17 14:44
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 416 Warwick 10-Apr-17 15:26
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 399 Origyptian 10-Apr-17 15:54
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 394 Warwick 10-Apr-17 16:01
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 446 Jon Ellison 10-Apr-17 16:23
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 424 Warwick 10-Apr-17 17:06
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 426 Jon Ellison 10-Apr-17 16:11
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 405 Warwick 10-Apr-17 17:23
I've come to recognize that I was wrong all along 565 Racho 08-Apr-17 16:54
Re: I've come to recognize that I was wrong all along 559 Warwick 08-Apr-17 18:23
Oranges and apples... 483 Racho 09-Apr-17 00:39
Re: Oranges and apples... 453 Warwick 09-Apr-17 15:59
Re: In plain sight 473 Thunderbird 10-Apr-17 19:53
It is in plain sight...or plane sight ;) 469 Racho 14-Apr-17 06:53
Re: It is in plain sight...or plane sight ;) 514 Thunderbird 15-Apr-17 01:31
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 439 Archae Solenhofen 09-Apr-17 16:47
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 431 Warwick 09-Apr-17 16:52
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 418 Origyptian 09-Apr-17 19:49
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 434 Warwick 09-Apr-17 19:53
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 414 Origyptian 09-Apr-17 20:09
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 498 Origyptian 09-Apr-17 19:49
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 509 Jon Ellison 09-Apr-17 19:59
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 421 Origyptian 09-Apr-17 20:26
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 429 Fsbirdhouse 10-Apr-17 15:26
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 424 Origyptian 10-Apr-17 15:46
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 472 Fsbirdhouse 10-Apr-17 18:45
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 438 Eddie Larry 10-Apr-17 18:49
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 411 Origyptian 10-Apr-17 18:50
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 437 Warwick 10-Apr-17 19:18
unless the cuts were being made very, very quickly... 395 Racho 11-Apr-17 06:22
Re: unless the cuts were being made very, very quickly... 508 Jon Ellison 11-Apr-17 09:27
Re: unless the cuts were being made very, very quickly... 309 Origyptian 11-Apr-17 19:32
Re: unless the cuts were being made very, very quickly... 460 Jon Ellison 11-Apr-17 19:38
Re: unless the cuts were being made very, very quickly... 302 Archae Solenhofen 11-Apr-17 14:11
Re: unless the cuts were being made very, very quickly... 412 Jon Ellison 11-Apr-17 14:27
Re: unless the cuts were being made very, very quickly... 396 Archae Solenhofen 11-Apr-17 14:49
Re: unless the cuts were being made very, very quickly... 380 Jon Ellison 11-Apr-17 15:27
Re: unless the cuts were being made very, very quickly... 393 Fsbirdhouse 11-Apr-17 15:53
Re: unless the cuts were being made very, very quickly... 451 Jon Ellison 11-Apr-17 15:55
Re: unless the cuts were being made very, very quickly... 458 Archae Solenhofen 11-Apr-17 16:35
Re: unless the cuts were being made very, very quickly... 266 Jon Ellison 11-Apr-17 16:49
Re: unless the cuts were being made very, very quickly... 294 Origyptian 11-Apr-17 19:54
once the mistake... 385 Racho 12-Apr-17 00:03
Re: unless the cuts were being made very, very quickly... 490 Thunderbird 12-Apr-17 04:20
Re: unless the cuts were being made very, very quickly... 329 Origyptian 12-Apr-17 13:14
Re: unless the cuts were being made very, very quickly... 463 Archae Solenhofen 11-Apr-17 17:31
Re: unless the cuts were being made very, very quickly... 386 Jon Ellison 11-Apr-17 18:17
Re: unless the cuts were being made very, very quickly... 376 Jon Ellison 11-Apr-17 18:26
Re: unless the cuts were being made very, very quickly... 455 Jon Ellison 11-Apr-17 18:43
Re: unless the cuts were being made very, very quickly... 380 Archae Solenhofen 12-Apr-17 14:43
Re: unless the cuts were being made very, very quickly... 393 Archae Solenhofen 11-Apr-17 18:41
Re: unless the cuts were being made very, very quickly... 430 Jon Ellison 11-Apr-17 18:45
Re: unless the cuts were being made very, very quickly... 334 Fsbirdhouse 11-Apr-17 18:48
Re: unless the cuts were being made very, very quickly... 421 Jon Ellison 11-Apr-17 19:00
Re: unless the cuts were being made very, very quickly... 342 Warwick 11-Apr-17 19:37
Re: unless the cuts were being made very, very quickly... 420 Jon Ellison 11-Apr-17 19:59
Re: unless the cuts were being made very, very quickly... 339 Warwick 11-Apr-17 20:29
Re: unless the cuts were being made very, very quickly... 400 Jon Ellison 11-Apr-17 20:34
Re: unless the cuts were being made very, very quickly... 436 Jon Ellison 11-Apr-17 20:29
Re: unless the cuts were being made very, very quickly... 334 Warwick 11-Apr-17 20:37
Re: unless the cuts were being made very, very quickly... 408 Jon Ellison 11-Apr-17 20:45
Re: unless the cuts were being made very, very quickly... 312 Warwick 12-Apr-17 17:24
science and technology...where minds come to meet 359 Racho 11-Apr-17 20:46
Re: science and technology...where minds come to meet 363 Jon Ellison 11-Apr-17 21:19
Re: science and technology...where minds come to meet 621 Archae Solenhofen 12-Apr-17 15:01
Re: science and technology...where minds come to meet 392 Warwick 12-Apr-17 17:52
43 second mark ...anyone care to take a crack at which tools were used? 408 Racho 12-Apr-17 20:20
Re: 43 second mark ...anyone care to take a crack at which tools were used? 496 Origyptian 12-Apr-17 21:34
and just after 30:30 min mark..china cave - chisels did this? 536 Racho 12-Apr-17 22:54
Re: and just after 30:30 min mark..china cave - chisels did this? 408 Warwick 13-Apr-17 17:15
taking sides...I suppose so but 434 Racho 14-Apr-17 04:18
beating the dead horse... 552 Racho 20-Apr-17 06:50
Re: Carved all this out with copper tools? Hell, I'll give em hardened steel and still scratch my head 583 Notinham 11-Apr-17 01:43


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