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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 2600 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 648 Fsbirdhouse 02-Apr-17 20:05
Whoever operated this saw (2:30 min mark)...made a mistake 559 Racho 04-Apr-17 14:02
Re: Whoever operated this saw (2:30 min mark)...made a mistake 560 Fsbirdhouse 04-Apr-17 14:51
If on purpose... 185 Racho 14-Apr-17 05:01
Re: If on purpose... 211 Origyptian 14-Apr-17 05:32
Re: Whoever operated this saw (2:30 min mark)...made a mistake 480 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 418 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 270 Fsbirdhouse 09-Apr-17 16:59
Re: B 4 : ) 448 Thunderbird 05-Apr-17 05:22
Re: B 4 : ) 364 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 433 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 575 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 657 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 349 Warwick 08-Apr-17 17:57
if I carried out a test... 443 Racho 09-Apr-17 02:15
Re: if I carried out a test... 400 Jon Ellison 09-Apr-17 08:44
I did check it out :) 291 Racho 25-Apr-17 05:59
Re: I did check it out :) 195 Origyptian 25-Apr-17 14:22
Don't even need to stop to think on this... 206 Racho 25-Apr-17 15:37
Re: Don't even need to stop to think on this... 235 Thanos5150 25-Apr-17 17:20
I believe you are a copper/bronze tool proponent 206 Racho 25-Apr-17 18:07
Re: I believe you are a copper/bronze tool proponent 265 Thanos5150 25-Apr-17 19:49
Would you agree... 212 Racho 25-Apr-17 20:29
Re: Would you agree... 268 Thanos5150 25-Apr-17 21:07
Re: Would you agree... 219 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 173 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 123 Jon Ellison 15-Oct-17 14:26
precision cut at 7:08 min mark...interesting photo angle I haven't seen before 170 Racho 15-Oct-17 16:49
Re: precision cut at 7:08 min mark...interesting photo angle I haven't seen before 158 Jon Ellison 15-Oct-17 19:20
Re: precision cut at 7:08 min mark...interesting photo angle I haven't seen before 173 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 156 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 158 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 141 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 347 Jon Ellison 16-Oct-17 11:03
Re: Would you agree... 414 Corpuscles 25-Apr-17 23:56
Re: if I carried out a test... 276 Warwick 09-Apr-17 15:39
Re: if I carried out a test... 331 Fsbirdhouse 09-Apr-17 22:34
Re: if I carried out a test... 238 Jon Ellison 09-Apr-17 23:20
could not have been 287 Warwick 10-Apr-17 15:34
Re: could not have been 283 Jon Ellison 10-Apr-17 16:18
Re: could not have been 300 Warwick 10-Apr-17 17:29
Re: could not have been 294 Jon Ellison 10-Apr-17 17:59
Re: could not have been 230 Warwick 10-Apr-17 18:48
Re: could not have been 229 Jon Ellison 10-Apr-17 19:18
Re: could not have been 254 Warwick 10-Apr-17 19:34
Re: could not have been 286 Jon Ellison 10-Apr-17 19:55
Re: could not have been 244 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 252 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 340 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 290 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 263 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 299 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 266 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 261 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 298 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 262 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 298 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 247 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 275 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 266 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 255 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 383 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 240 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 352 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 344 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 278 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 290 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 252 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 248 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 235 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 297 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 255 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 259 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 259 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 312 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 269 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 266 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 251 Warwick 10-Apr-17 17:23
I've come to recognize that I was wrong all along 393 Racho 08-Apr-17 16:54
Re: I've come to recognize that I was wrong all along 387 Warwick 08-Apr-17 18:23
Oranges and apples... 322 Racho 09-Apr-17 00:39
Re: Oranges and apples... 283 Warwick 09-Apr-17 15:59
Re: In plain sight 310 Thunderbird 10-Apr-17 19:53
It is in plain sight...or plane sight ;) 272 Racho 14-Apr-17 06:53
Re: It is in plain sight...or plane sight ;) 323 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 280 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 263 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 269 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 286 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 267 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 317 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 311 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 272 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 257 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 245 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 308 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 281 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 270 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 283 Warwick 10-Apr-17 19:18
unless the cuts were being made very, very quickly... 229 Racho 11-Apr-17 06:22
Re: unless the cuts were being made very, very quickly... 342 Jon Ellison 11-Apr-17 09:27
Re: unless the cuts were being made very, very quickly... 158 Origyptian 11-Apr-17 19:32
Re: unless the cuts were being made very, very quickly... 305 Jon Ellison 11-Apr-17 19:38
Re: unless the cuts were being made very, very quickly... 179 Archae Solenhofen 11-Apr-17 14:11
Re: unless the cuts were being made very, very quickly... 265 Jon Ellison 11-Apr-17 14:27
Re: unless the cuts were being made very, very quickly... 265 Archae Solenhofen 11-Apr-17 14:49
Re: unless the cuts were being made very, very quickly... 245 Jon Ellison 11-Apr-17 15:27
Re: unless the cuts were being made very, very quickly... 246 Fsbirdhouse 11-Apr-17 15:53
Re: unless the cuts were being made very, very quickly... 295 Jon Ellison 11-Apr-17 15:55
Re: unless the cuts were being made very, very quickly... 302 Archae Solenhofen 11-Apr-17 16:35
Re: unless the cuts were being made very, very quickly... 149 Jon Ellison 11-Apr-17 16:49
Re: unless the cuts were being made very, very quickly... 145 Origyptian 11-Apr-17 19:54
once the mistake... 231 Racho 12-Apr-17 00:03
Re: unless the cuts were being made very, very quickly... 332 Thunderbird 12-Apr-17 04:20
Re: unless the cuts were being made very, very quickly... 175 Origyptian 12-Apr-17 13:14
Re: unless the cuts were being made very, very quickly... 295 Archae Solenhofen 11-Apr-17 17:31
Re: unless the cuts were being made very, very quickly... 252 Jon Ellison 11-Apr-17 18:17
Re: unless the cuts were being made very, very quickly... 241 Jon Ellison 11-Apr-17 18:26
Re: unless the cuts were being made very, very quickly... 300 Jon Ellison 11-Apr-17 18:43
Re: unless the cuts were being made very, very quickly... 202 Archae Solenhofen 12-Apr-17 14:43
Re: unless the cuts were being made very, very quickly... 225 Archae Solenhofen 11-Apr-17 18:41
Re: unless the cuts were being made very, very quickly... 257 Jon Ellison 11-Apr-17 18:45
Re: unless the cuts were being made very, very quickly... 196 Fsbirdhouse 11-Apr-17 18:48
Re: unless the cuts were being made very, very quickly... 263 Jon Ellison 11-Apr-17 19:00
Re: unless the cuts were being made very, very quickly... 180 Warwick 11-Apr-17 19:37
Re: unless the cuts were being made very, very quickly... 259 Jon Ellison 11-Apr-17 19:59
Re: unless the cuts were being made very, very quickly... 184 Warwick 11-Apr-17 20:29
Re: unless the cuts were being made very, very quickly... 247 Jon Ellison 11-Apr-17 20:34
Re: unless the cuts were being made very, very quickly... 268 Jon Ellison 11-Apr-17 20:29
Re: unless the cuts were being made very, very quickly... 174 Warwick 11-Apr-17 20:37
Re: unless the cuts were being made very, very quickly... 242 Jon Ellison 11-Apr-17 20:45
Re: unless the cuts were being made very, very quickly... 170 Warwick 12-Apr-17 17:24
science and technology...where minds come to meet 207 Racho 11-Apr-17 20:46
Re: science and technology...where minds come to meet 205 Jon Ellison 11-Apr-17 21:19
Re: science and technology...where minds come to meet 448 Archae Solenhofen 12-Apr-17 15:01
Re: science and technology...where minds come to meet 249 Warwick 12-Apr-17 17:52
43 second mark ...anyone care to take a crack at which tools were used? 256 Racho 12-Apr-17 20:20
Re: 43 second mark ...anyone care to take a crack at which tools were used? 316 Origyptian 12-Apr-17 21:34
and just after 30:30 min mark..china cave - chisels did this? 353 Racho 12-Apr-17 22:54
Re: and just after 30:30 min mark..china cave - chisels did this? 272 Warwick 13-Apr-17 17:15
taking sides...I suppose so but 271 Racho 14-Apr-17 04:18
beating the dead horse... 340 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 411 Notinham 11-Apr-17 01:43


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