Aussie Lapidary Forum

LAPIDARY => Cabbing and More => Topic started by: MakkyBrown on March 07, 2021, 08:56:31 AM

Title: Fern for a 50th birthday present
Post by: MakkyBrown on March 07, 2021, 08:56:31 AM
This is a fern cab I recently made for a friends 50th. Gee it was a bit of a struggle using my cabbing machines worn out wheels. The fern is heavily silicafied(is that a word) and really hard material work. I even had a go with using leather cord for the first time, never tied a cats paw or slip knot before but thanks to google I found some instructions to follow :)End result I really like.

(https://aussielapidaryforum.com/forum/gallery/9/medium_5704-240221221125.jpeg) (https://aussielapidaryforum.com/forum/index.php?action=gallery;sa=view;id=9360)
Title: Re: Fern for a 50th birthday present
Post by: Faceting Frank on March 07, 2021, 11:19:17 AM
Very nice. Is that some form of agate?
Title: Re: Fern for a 50th birthday present
Post by: MakkyBrown on March 07, 2021, 11:51:15 AM
It is jurassic tree fern Osmundacaulis tasmanensis, buried my ash and lava about 180million years ago. Then over millions of years it was silicafied by I think mostly upwelling water collecting silica from ash and basalt. The cab shows the eyes of the fronds, if you look closely you will notice an large amount of detail has been preserved.

MB
Title: Re: Fern for a 50th birthday present
Post by: mehoose on March 07, 2021, 12:22:50 PM
 Droo WOWSER!!! That is one gorgeous rock! Totes jelly(totally jealous) on you having some of that rough. I have the 'normal' which is gorgeous but it's the first time I've seen a piece that silicified!
Title: Re: Fern for a 50th birthday present
Post by: MakkyBrown on March 07, 2021, 12:42:20 PM
There is some really beautiful fern at Lune River if you find the right spot  ;)
Title: Re: Fern for a 50th birthday present
Post by: Findem on March 07, 2021, 03:02:31 PM
Try "silicified".
Title: Re: Fern for a 50th birthday present
Post by: MakkyBrown on March 07, 2021, 03:11:26 PM


Try "silicified".

Yeah I was wondering if that was a word, my spelling is terrible, no guarantee I get it correct next time  ;D But I'll try.
Title: Re: Fern for a 50th birthday present
Post by: Mouse on March 08, 2021, 02:26:45 PM
Very nice Makky. Another example of your Lune River fern.
Have you flat cabbed that piece?
What do you use to drill and countersink the holes? Are they special drills?

Title: Re: Fern for a 50th birthday present
Post by: MakkyBrown on March 08, 2021, 04:39:15 PM
Very nice Makky. Another example of your Lune River fern.
Have you flat cabbed that piece?
What do you use to drill and countersink the holes? Are they special drills?
Hi Mouse,Cab is curved on both sides. I counters sunk with a cone shaped sintered burr. Drilling was pretty slow going I need to buy some small sintered hole saws that seem to work better.CheersMB
Title: Re: Fern for a 50th birthday present
Post by: MakkyBrown on March 14, 2021, 05:16:53 PM
Here is a bit i polished today.
(https://aussielapidaryforum.com/forum/gallery/9/medium_5704-140321171608.jpeg) (https://aussielapidaryforum.com/forum/index.php?action=gallery;sa=view;id=9375)
Title: Re: Fern for a 50th birthday present
Post by: MakkyBrown on March 14, 2021, 05:20:51 PM
Just looking at it now, I'll have to take another photo as it is drying out and getting more contrast.
Title: Re: Fern for a 50th birthday present
Post by: Faceting Frank on March 14, 2021, 05:35:14 PM
Very nice Makky.
Title: Re: Fern for a 50th birthday present
Post by: steveo on March 16, 2021, 06:33:10 AM
Really nice.