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@reiiabdii

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At 1.2 kg (2.6 pounds), this is the largest free form black opal in the world, discovered by a miner in Lightning Ridge, Australia. 

Photography courtesy of Christine Roussel.

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Perfect natural pyrite cubes from @earthsnaturalart 🔸🔶🔸🔶🔸 #pyrite #nature #cluster #museum #prospectors #balance #minerales #minerali #quartz #amethyst #geometric #gemstonecrystal #gemstone #mineral #crystal #gemstones #gem #mineralogy #naturalbeauty #minerals #crystals #gems #rocks #geology #mineralspecimen #naturalart #naturalcrystal #nature #shoutout #unearthedgemstones

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earthstory

What a stunning fossil

The 9.8xby 10.3x 4.8 cm clam would be an impressive addition to a collection in and of itself, despite its relatively young age (2-3 million years old). At some point in the intervening time waters passed by the fossil, and remobilised the calcium from the shell itself before encountering some change in conditions that caused precipitation of the crystals of golden calcite. Good quality complete pieces like this are rare, and I have to say I rather like it.

Loz

Image credit: Exceptional Minerals

Wow! Love this! A clam fossil with gem :) https://unearthedgemstones.com

Source: facebook.com

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