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oldschoolrocker
fully equipped rock polisher

Member since January 2019
Posts: 1,578

3 points Aug 2, 2020 17:59:39 GMT -5 Pat, pauls, and 7 more like this

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Post by oldschoolrocker on Aug 2, 2020 17:59:39 GMT -5

Just killing some time at work...

first up is unknown material. I suspect it's some sort of banded calcite (if there is such a thing). its super soft so dont think it will survive a run in the lot o. so will try to polish w dremel. any help on ID is much appreciated.

next is Wyloo agate tho dont think it's actually an agate. fairly soft and fun to work with the dremel.

and this last one is my favorite of the 3- Bulico Jasper. got a small cheap slab of this and really like the material.

thanks for looking!

lpl has rocks in the head Member since December 2017 Posts: 748	3 points Aug 3, 2020 8:01:40 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by lpl on Aug 3, 2020 8:01:40 GMT -5 All are great and the Bulico is fantastic!
	John www.etsy.com/shop/LPLandSilver

pauls fully equipped rock polisher Member since May 2013 Posts: 1,173	3 points Aug 3, 2020 18:19:40 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by pauls on Aug 3, 2020 18:19:40 GMT -5 Number one would be Calcite (or Aragonite) from cave deposits. Flowstone or stalactite material. Wyloo is a source of a lot of good quality Marble so it could be a type of Marble, it also has some deposits of Amethyst. Great cabs.

rmf
fully equipped rock polisher

Member since November 2017
Posts: 1,888

3 points Aug 3, 2020 21:01:43 GMT -5

Quote

Post by rmf on Aug 3, 2020 21:01:43 GMT -5

AS pauls said #1 is travertine. Cave onyx, Mexican onyx... If you use diamond take it to 8000 and if you use SiC take it to 600 then polish with a mixture of oxalic acid and tin. You can get a mirror polish. Cerium or Al2O3 will also sub for SnO2

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Welcome to the Rock Tumbling Hobby Forum where we share a love of rocks and a sense of community as enduring as the stones we polish. The RTH Forum of www.RockTumbling.com is an Amazon Associate site and we earn money from qualifying purchases you make after clicking on our links such as this Rock Tumbling Supplies on Amazon link for instance, or any of our various product ads and banners. By clicking our links every time you begin your Amazon shopping experience, you are generating a bit of revenue for the forum which helps us cover our expenses. Thank you for your support!