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Quartz (SiO₂) is one of the most abundant minerals on Earth
5” and weighs 63 oz
It occurs in association with crandallite and variscite in hydrothermal regions and in phosphate rock deposits
Franklinite is a dense
This item is 4” x 2” and weighs 9
Fossil Fern 300 MYO | Pennsylvania crystal Quartz (SiO₂) is one ofThis striking fossilized fern comes from the Pottsville Formation, dating back roughly 300 million years to the Pennsylvanian period. The slab features beautifully preserved fern fronds with excellent detail and contrast, showcasing the classic dark carbon impressions against the natural grey shale. This item is 6. 5 x 6 and weighs 1 lb 15 oz.
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