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Gray stones with short small dark shiny lines all over it. Found it on the beaches of Newport Rhode Island.

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  • $\begingroup$ please give some details,hard-soft-light-heavy. the pictures are ok. $\endgroup$ – trond hansen Dec 11 '18 at 11:16
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Given the lighter colored fine grained matrix material with the dark crystals I would suggest that this rock is extrusive with phenocrysts of hornblende (a dark version of an Amphibole). Without addition information about the matrix material or the phenocrysts I would class this rock as a Andesitic hornblende porphyry. See the following site for more information on Andesite (the matrix material) Description of Andesite.

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  • $\begingroup$ The rock is fairly light in comparison to other rocks equal to its size, I will attach more photos $\endgroup$ – Scotty Dumouchelle Dec 12 '18 at 4:19

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