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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
5x8 inches
amber has been prized for its warm
Double refraction
Comprising silicon dioxide
This material has historical significance for its use in sighting equipment for bombardiers and gunners during wartime
8" Septarian Slab DS2235 marquise 5x8 inches8" Septarian Slab Approx. Dimensions: 8x7. 75x0. 5 inches Approx. Weight: 816 grams Locality: Mexico Slab stand is included. Septarian, a distinctive sedimentary rock, forms through the combination of calcite, aragonite, and limestone with organic matter and minerals such as iron sulfide. It develops in concretions within sedimentary deposits, often found in regions with ancient seabeds, notably in Utah, USA, Madagascar, and Morocco. These concretions
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