File:1.3-2019Spheroids 003-c1.jpg

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Summary

Description
English: An ~ 80 pound block of obsidian with "trains" of cristobalite spheroids along the convection flow lines that allowed the needles to become spheres.
Date
Source Own work
Author DaveC1

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Captions

Spheroid "trains" in obsidian

Items portrayed in this file

depicts

13 February 2019

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6.3 millimetre

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d4a745847a0fae020ff419ba60970bab239d2b8e

358,443 byte

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1,112 pixel

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Date/TimeThumbnailDimensionsUserComment
current23:34, 26 December 2020Thumbnail for version as of 23:34, 26 December 20201,112 × 1,000 (350 KB)DaveC1Uploaded own work with UploadWizard
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