
Geology Tweets
@GeologyTime
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Unlocking science of minerals, crystals, fossils, gems & geology.
Joined February 2014
This rare type of fossilization, called pyritization, gives the ammonite a striking metallic sheen ranging from pale brass to deep gold.
geologyin.com
Pyrite ammonites are fossilized shells of extinct marine mollusks whose original material has been replaced or coated by iron sulfide (FeS₂...
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RT @GeologyTime: Alexandrite is a rare and beautiful gemstone known for its stunning color change. It appears emerald green in daylight a….
geologyin.com
Alexandrite is a rare and beautiful gemstone known for its stunning color change. It appears emerald green in daylight and reddish-purple un...
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