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 (as an alloy) 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 ldensest and the rarest element that you can dig out of the Earth. It’s so hard that it’s used (as an alloy) in places with constant pressure and wear, like the tips of fountain.

Chrysocolla covered with drusy Quartz / Ray Mine, Pinal County, Arizona

Chrysocolla covered with drusy Quartz / Ray Mine, Pinal County, Arizona, USA

Topaz! I love all colors of it ! It is such an intriguing rock. Shine on !

I love all colors of it ! It is such an intriguing rock. Shine on ! My birthstone

Lightning Ridge Opal

Lightning Ridge light crystal opal " The rose bud" carved by Daniela l'Abbate. The pearlescent quality makes it seem slightly transparent.

Aquamarine with Schorl (black Tourmaline) and Albite.

Aquamarine with Schorl (black Tourmaline) and Albite. A very clear and flawless specimen.

Petrified wood | #Geology #GeologyPage Geology Page www.geologypage.com

Petrified wood | #Geology #GeologyPage Geology Page www.geologypage.com

Crystals & Stones: #Wavelite, from Arkansas, USA.

Wavellite: Avant Mine, Avant, Garland Co., Arkansas Dimensions x x cm. Thingofinterest: a phosphate mineral with formula F) WAVELLITE is perhaps the second best known collectable mineral in Arkansas, quartz being the first.

Silver Crystals | Flickr - Photo Sharing!

Silver Crystals: These silver crystals were electrochemically grown from a solution of silver nitrate, using silver electrodes. The field of view is 18 mm and is composed of 92 individual photos, combined using focus stacking.

Turquoise - health, intuition, self-expression. Uplifts, heals, and cleanses the spiritual energy centre and physical body.

A confession: I know NOTHING about geology or gems. But this stuff is amazing. (A rare moment of humility. This wine stuff works.i find this color enticing.and i know the reason, but i cannot speak to it.

Uvite Tourmaline

Blood Red Uvite Crystals - The Mineral and Gemstone Kingdom Blood-red lustrous Uvite Tourmaline crystals

Malachite with Chrysocolla - partially polished Stalactite / Congo

Malachite with Chrysocolla Stalactite Crystal . A vivid turquoise blue Chrysocolla exterior has been partially polished to reveal an amazing interior of velvety concentric bands of darker and lighter green chatoyant Malachite.

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