I recently decided to buy a National Geographic break your own geodes kit on whim. Of the 10 I have, five are run of the mill druzy quartz and four I couldn't even break open. This one though, struck me as unusual. I've never seen a geode like this before. Does anyone know anything about why it might have formed this way?
Beautiful large specimens of “blueberry” fluorite on quarts from the Fe-Sn deposit of the Huanggang Mine, Chifeng City, Inner Mongolia, China. One specimen even contains cubic fluorite which then has a layer of blue fluorite which has grown on top!
Wanted to share this beautiful specimen of Hübnerite a manganese tungstate mineral with the chemical formula MnWO₄ from my collection.
1.50 Carats Natural Sapphire Africa No Treatment
I was told it's amethyst but i don't know anything about minerals and since it's so big and was given to me for free I'm having doubts
Coal of similar size is 112 g, specimen 367 g. From an open cut coal mine in Australia, I believe it is partially rock partially pyrite but I know very little on the subject. It sparkles in direct sunlight and is golden.
Any recommendations on how to display it would also be appreciated i.e. chisel away stone, break it in half.
I don't want to damage the formation at all and I'm pretty sure it's quartz. Is it worth trying to clean it or will I probably damage it?
Found in Globe Arizona (mining town), off Shit Creek. Slag Glass perhaps, or do you think a gemstone of some sort? Kinda Opalescent on the outside...
known as "rocket quartz" due to the shape
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