Precious opal vein in sandstone, 2016-09-20
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A rounded cobble of striated quartzite. This rock has a pretty long history- originally it was a sandstone with horizontal bedding that was then metamorphosed into quartzite. Later that quartzite was eroded and this cobble was picked up by glaciers that eventually deposited it in the Bronx.
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fluorite & sphalerite
Elmwood Mine, Carthage, Smith County, Tennessee, USA
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my friend told me that her boyfriend got her a super cool rock while they were on vacation together and you would not BELIEVE my disappointment when i realized she was talking about her engagement ring
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Man made crystals are so cool it’s so sad everyone who likes rocks is out for blood if you post man made crystals. I love you opalite I love you lab created opal I love you bismuth I love you HTA citrine I love you goldstone
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