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  • Mia Odic

    Geode, Ethiopian Opal Inorganic, which means that it is not made by a living organism. A solid. There is one unusual exception. Native mercury is a mineral and is the only metal that is a liquid at normal temperatures. Has a regular crystal structure. The crystal structures are described as crystal systems. Made by nature which means minerals are not made, directly or indirectly, from human activity. Has a predictable chemical formula.

  • Gemini Moon

    Ethiopian Opal Geode Opal is an amorphous form of silica related to quartz, a mineraloid form, not a mineral. 3% to 21% of the total weight is water, but the content is usually between 6% to 10%. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl and basalt. Opal is the national gemstone of Australia, which produces 97% of the world's supply.

  • Michele Hauf

    .opal (looks like an exotic chocolate truffle)


    When minerals form a flat surface it is called a face. Minerals can have many flat surfaces and when these faces join together, they form a crystal. Download the activity page on the right and create your own mineral face or even a mineral cartoon character out of the mineral faces on the sheet.

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Blue Green Peruvian Opal: enhances cosmic consciousness while promoting psychic visions. Assists in bringing forth and expressing the "authentic self" | #perspicacityparty #magicgeodes #opal

❥ Faux opal~ made with polymer clay... Gorgeous!! Whoulda thunk it!!

rainbow opal. LOVE opals!

Looks like a galaxy (maybe it is) in a rock. Head explosion. So awesome

Opal: Fantastic up close detail of an Opal stone. Lines, shapes and colour. Incredible ideas forming in my head that need to get onto paper!!

geodes! i have a bunch of these from a waterfall in Tennessee

  • Taunia H

    How do you get them cut open?

  • birdLady

    Have never tried to open the ones we found , I've bought several broken ones.

Nature Art: "Rainbow Rock" Benjamin Cowderoy or BenjaminNeil 2010-09-10 (@flickr 4977585595)

Geode, blue agate rock. Super natural, right?!