35517: Quartz variety Radiolarian Chert -
$8 San Benito County, California Miniature - 6.1 x 5.8 x 4.0 cm 124 grams Specimen status: Available Send an email with specimen number to order A chunk of opaque, grey chert produced
from fossil radiolarian skeletons. Sometimes called
radiolarite. High magnification is needed to discern
individual fossils. Carries an old Minerals Unlimited
label. Not pretty, but also not commonly represented in
mineral or rock collections.
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