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Osmium twinning / Osmium is a hard,   brittle, blue-gray or blue-black transition metal in the platinum family and is   the densest naturally occurring element, with a density of 22.59 g/cm3 (slightly   greater than that of iridium and twice that of lead).

Osmium twinning / Osmium is a hard, brittle, blue-gray or blue-black transition metal in the platinum family and is the densest naturally occurring element, with a density of 22.59 g/cm3 (slightly greater than that of iridium and twice that of lead).

Uncut Rough Diamond

Uncut Rough Diamond

A rough uncut diamond. The diamond is displayed on a small pedestal, in a clear acrylic case. LOOSE STONE Count and Type: 1 Diamond Shape: Rough Treatment: untreated This item has been evaluated an.

This is my moldavite! Very powerful stone and one of my favorites.

This is my moldavite! Very powerful stone and one of my favorites.

2 Pieces Natural Flat Diamond Crystals Trillions, Raw Rough Diamond, Uncut Loose Natural Black Grey Diamond, 6.5mm Approx, DDS470 by GemsDiamondsBySHIKHA on Etsy

50% 2 Pieces Natural Flat Diamond Crystals Trillions, Raw Rough Diamond, Uncut Loose Natural Black Grey Diamond, 6.5mm Approx, DDS47

2 Pieces Natural Flat Diamond Crystals Trillions, Raw Rough Diamond, Uncut Loose Natural Black Grey Diamond, 6.5mm Approx, DDS470 by GemsDiamondsBySHIKHA on Etsy

This looks like charcoal, but is actually an uncut black diamond from Sierra Leone.  Gem-quality black diamonds are rare; they are mainly used in industry because of their ability to cut the hardest materials.

This looks like charcoal, but is actually an uncut black diamond from Sierra Leone. Gem-quality black diamonds are rare; they are mainly used in industry because of their ability to cut the hardest materials.

I get the newsletter the Crater of Diamonds State Park folks put together and it is filled with some pretty neat stuff. Like this week! The below article by Park Interpreter Margi Jenks was featured and covers what rough<span class="ellipsis">…</span><div class="read-more"><a href="http://www.arkansas.com/blog/post/diamonds-hunting-tips-from-crater-of-diamonds-state-park/">Read more ›</a></div><!-- end of .read-more -->

Diamond Hunting Tips from Crater of Diamonds State Park

I get the newsletter the Crater of Diamonds State Park folks put together and it is filled with some pretty neat stuff. Like this week! The below article by Park Interpreter Margi Jenks was featured and covers what rough<span class="ellipsis">…</span><div class="read-more"><a href="http://www.arkansas.com/blog/post/diamonds-hunting-tips-from-crater-of-diamonds-state-park/">Read more ›</a></div><!-- end of .read-more -->

From Julia Turshen. This cauliflower had fallen off the sheet pan when I was toasting vegetables but I didn't realize it until the next time I preheated my oven, it got completely toasted...oy!

From Julia Turshen. This cauliflower had fallen off the sheet pan when I was toasting vegetables but I didn't realize it until the next time I preheated my oven, it got completely toasted...oy!

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