jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
|
Post by jamesp on Jul 23, 2014 16:19:24 GMT -5
Not so many hollow ones. Externally I thought they were. A lot of blue grey material at this location. Secondaries were hollow on this one About all of these were sealed in clay and still have the spines from partial silicification all over them. This location has the aurora effect. And the silicate never made it to the center. Called 'pulpy center'. Many pulpy centers. Some shoals have nothing but pulpy centers, some have few. Many with pulpy centers have the best color in the solid edge. Cut down the tubes, they radiate out from the center at bottom. Next cuts will be across the tubes to show the corallites. Will have to rotate around to get 90 degree approach to tubes. This one too big for blade. This one had no shape or patterns, and is being reduced to tumbles Blacker areas are colored with pepper specks Turtle shaped head cut snorkeled at this location to see what the river corals stained to Thanks for looking
|
|
|
corals
Jul 24, 2014 5:01:40 GMT -5
Post by snowmom on Jul 24, 2014 5:01:40 GMT -5
wowser- that first one is awesome to the max. your river coral shows faint banding... not the saw marks,or is it the grain of the piece? but in the coloration in rings... so interesting. keep posting!
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
|
Post by jamesp on Jul 24, 2014 11:02:34 GMT -5
wowser- that first one is awesome to the max. your river coral shows faint banding... not the saw marks,or is it the grain of the piece? but in the coloration in rings... so interesting. keep posting! it is the faint grain. Most of them were sawed with the tubes and in that direction there are slight patterns. Patterns from the tubes, but not well preserved, mostly replaced by silica. The third coral is about a total replacement of silica, no patterns at all. The fifth picture shows the tubes split by the saw. But I am taking an expert group of rock collectors down there and they will be able to find the ones w/fine patterns !! I am anxious to go again. This time to get baby corals. Check these tumbled ones out from the Suwannee river www.flickr.com/photos/67205364@N06/sets/72157633265769440
|
|
|
corals
Jul 24, 2014 11:27:34 GMT -5
Post by snowmom on Jul 24, 2014 11:27:34 GMT -5
can't wait to see the next series! You could do a coral hunting reality show!
|
|
|
corals
Jul 24, 2014 20:16:50 GMT -5
Post by kap on Jul 24, 2014 20:16:50 GMT -5
The next 2 weeks will not be over fast enough! I love the blue in those!
|
|
|
Post by kap on Jul 24, 2014 20:18:21 GMT -5
Love the tumbles I am looking forward to filling a few barrels and get them rolling!
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
|
corals
Jul 24, 2014 22:15:59 GMT -5
Post by jamesp on Jul 24, 2014 22:15:59 GMT -5
Love the tumbles I am looking forward to filling a few barrels and get them rolling! Keith, the way I make my best tumbles is sawing a big solid head across the tubes in 1.5-2 inch slabs and then striking the edge of the sawn face with a small hammer. For some reason the flat sawn surface keeps fractures from entering the pieces when knocking pieces off. I often chip my tumbles right on the river in a chair with a board in my lap. Keeping the best. Easy stuff to work with. It chips down the tubes better than across them. Often the tubes are completely not visible and you have to look at the shape of the coral to tell what is across them or with them.
|
|
knifegirl
off to a rocking start
Member since July 2014
Posts: 24
|
Post by knifegirl on Jul 28, 2014 9:43:26 GMT -5
Thanks for posting, great to see and learn.
|
|