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Let's Rock => Mineral Specimens => Topic started by: VegasJames on November 01, 2018, 10:12:25 AM
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Siderite is iron carbonate. Same crystal structure as dolomite but with iron instead of calcium.
(https://farm1.staticflickr.com/563/31972546924_e56989ae2c_c.jpg) (https://flic.kr/p/QHiEi3)20170209_145850 (https://flic.kr/p/QHiEi3) by James Sloane (https://www.flickr.com/photos/143011703@N05/), on Flickr