Post by 150FromFundy on Jul 11, 2010 8:20:20 GMT -5
Scotch Lake Quarry, Cape Breton Island, Nova Scotia
This is a very old place. The crystalline limestone that forms the bedrock is Precambrian, or over 540 million years old! The Scotch Lake Quarry was operated from circa 1900 to 1950 to supply dolomite, used as flux, at the Dominion Coal and Steel Corporation in Sydney. Problem is, all this other stuff got in the way.
The mottled greens to reds on the cliff face are serpentine.
That’s me in the picture. Mmmm, this one tastes like lead.
There’s material of every size and shape to suit your needs.
Don’t think you have to climb all the way up there to get it. The quarry floor is littered with easy pickings. In this photo alone I see dolomite (white), serpentine (lime green), pyroaurite (blue) and hematite (rust).
Laura and I were on a tight schedule, so we only spent about an hour collecting here. The tailgate photos are wet to bring out the wide range of colour. The serpentine is reported as being “yellow, yellow-green, olive-green, blue, red and brown with a variety of patterns producing banded, spotted, streaked and mottled effects”. I think we found most of the list.
I have seen beautiful cabs made with the serpentine from this quarry that are obviously produced using wheels and disks. Serpentine has a hardness of only 2.5. Does anyone know if soft material like this can be polished with rotary and/or vibratory tumblers? Any suggestions would be greatly appreciated.
Darryl: Great trip, I enjoyed all the posts so I thought I would comment her since this one had the prettiest rocks, LOL. OUr serpentine cabs pretty well, I would think if you tumbled it all together making sure there was nothing else harder in there you would be OK, but I am a tumbler flunkie, so what do I know! Glad you are having a nice summer! Amber
The Creator of the Rock God and Master of the Universe
mikeyrocks: Hey ms D you on your way to S Cal? Safe travels
Aug 28, 2015 19:31:31 GMT -5
parfive: September Rock & Gem, coupla familiars on p29.
Aug 28, 2015 19:34:38 GMT -5
quartz: 1 1/2 hrs. steady rain this A.M., first since mid May. Thanks to all for doing your rain dances.
Aug 29, 2015 7:25:47 GMT -5
Fossilman: Yes Diana,there is more to that story too..LOL We received some good rain lastnite too,more coming this week...Los of thunder,liking that!
Aug 29, 2015 9:28:58 GMT -5
mr.mohs: certain corridor of Phoenix had a violent thunderstorm last night-- I was in the eye of the storm--- the rocks are o.k. mostly
Sept 1, 2015 8:53:09 GMT -5
rockpickerforever: Ed, I heard about that on the news this morning. It's a good thing your rocks are hard, lol. How did you fare?
Sept 1, 2015 11:00:01 GMT -5
spiritstone: Expect more stormy weather. Its snowing in the mountains.
Sept 1, 2015 15:08:24 GMT -5
Fossilman: Snowing on Mount Hood here in Oregon too.................
Sept 1, 2015 16:48:21 GMT -5
spiritstone: Its the third or forth time in the last 2 weeks for us. I dont know why obama is headed to the arctic circle? just come to the Alberta Rockies and see it aint melting.
Sept 1, 2015 17:13:40 GMT -5
mr.mohs: Don & I fared well Jean... thnxs for asking! Luckily the electric didn't go off the other 1/2 of town did...outside this morning looks like Godzilla was on the loose !
Sept 1, 2015 19:18:45 GMT -5
drocknut: Glad you and Don fared well, Ed.
Sept 1, 2015 19:24:04 GMT -5
drocknut: I'm fine Ed, a little warm still but I'll survive. Thanks for asking. By the way, dinner and dessert were excellent; I may have to come back for seconds...lol. Thanks Scott.
Sept 1, 2015 19:32:12 GMT -5
mr.mohs: I got frozen rainbow sherbet ... .... any time...mostly
Sept 1, 2015 19:43:15 GMT -5
$hotgunner: You are welcome.
Sept 2, 2015 11:01:13 GMT -5