Cobaltite Silver Ore preformed rough slab, 27x47x5.5mm, silver ore (rs9392)
Cobaltite natural native Silver Ore rough slab
Origin: Cobalt mine, Ontario, canada
Characteristics: Silver ore (unfinished gray) and white quartz, natural rare material. You can create a bright mirror shine with this material, my last picture shows 2 cabs that have a mirror polish but hard to see in pictures.
Approx size: 27 x 47 x 5.5 mm, weight: 29.8 g (149 ct.)
This native ore is the rare material from the Cobalt Mine near Ontario, Canada. Make a cabochon and your jewelry will stand out, in the bright light the shine just pops out. It has a spider web appearance, it makes gorgeous jewelry.
The Cobalt silver rush of 1903 happened when huge veins of silver were discovered by railway workers. By 1905 a full-scale silver rush was underway, and the town of Cobalt, Ontario sprang up to serve as its hub. By 1908 Cobalt produced 9% of the world's silver. However, the ore ran out fairly rapidly, and most of the mines were closed by the 1930s. There were several small revivals, in World War II and again in the 1950s, but both petered out and today there is no active mining in the area. In total, the Cobalt area mines produced 460 million ounces of silver.
This slab is not like a normal rough slab, I've taken the time to remove all or most of the pits and fracture lines to produce a more acceptable slab for cabs or specimen. I used 180 or 325 diamond grit to sand the edges, and smooth the front and back to make it easier for you to finish.
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Free Mystery cabochon - Purchase 3 or more cab listings and get a free cab.
I use a full spectrum 45 w light bulb - photography photo CFL 5500K. It's a daylight balanced pure white light.
Unless noted all my rough slabs are preformed with 180 or 325 diamond grit.
An 18 mm dime or 24mm quarter and 10 mm background squares in my pictures will help you with image sizing.
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Finishing your slabs: Want to finish your slabs or create a cab and want to know a little more about that, my Shopify shop has several blog posts on how to select rough and create a cabochon. Contact us if you want this information.