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Opal / Hungary

Opal / Hungary

Opalized wood/ 珪化木

とてつもない魔力を秘めてそう…美しすぎるウッド・オパールの写真が話題に

Opalized wood/ 珪化木

Chalcedony  var. Chrysoprase from Australia

Chalcedony var. Chrysoprase from Australia

Osmium is both the densest and the rarest element that you can dig out of the Earth. It's so hard that it's used in places with constant pressure and wear, like the tips of fountain pens. One single cubic inch of this stuff weighs nearly a pound, and were you to somehow get a cubic foot of it, it would weigh over 1,400 pounds. Good luck with that, though: last year, the entire U.S. osmium production was only 165 pounds.

Osmium is both the densest and the rarest element that you can dig out of the Earth. It's so hard that it's used in places with constant pressure and wear, like the tips of fountain pens. One single cubic inch of this stuff weighs nearly a pound, and were you to somehow get a cubic foot of it, it would weigh over 1,400 pounds. Good luck with that, though: last year, the entire U.S. osmium production was only 165 pounds.

opal

opal

世界最大のアメジスト晶洞石「ウルグアイの女帝」

世界最大のアメジスト晶洞石「ウルグアイの女帝」

古代の遺物,古代エジプト,骨董品,花瓶,アンティーク,美しいもの,歴史,アメジスト,インテリア

. possibly in here already

. possibly in here already

250倍に拡大して撮影した砂浜の砂

Tactical Investor on

250倍に拡大して撮影した砂浜の砂

Rainbow Stones - I would have a bowl of these on my coffee table

Rainbow Stones - I would have a bowl of these on my coffee table

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