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General Category => Photography => Topic started by: sealyons on September 10, 2022, 12:54:27 PM

Title: Please id this stone
Post by: sealyons on September 10, 2022, 12:54:27 PM

can anyone identify this stone
thanks in advance

Title: Re: Please id this stone
Post by: sealyons on September 10, 2022, 12:55:27 PM

one more pic

Title: Re: Please id this stone
Post by: vitzitziltecpatl on September 10, 2022, 04:55:29 PM

That shot's a bit too close for me to guess what it is.

Looks like some colorplay in the first photo - made me think of fire agate.

Title: Re: Please id this stone
Post by: R.U. Sirius on September 10, 2022, 06:03:11 PM

It'll be easier if you also post a regular photo, not just macros, with a coin, a hand, or a banana for scale  :smiley:

Also, do you know where the stone was found?

Title: Re: Please id this stone
Post by: sealyons on September 13, 2022, 08:18:35 AM

second pic was found in an old NY Cemetery could be from anywhere

Title: Re: Please id this stone
Post by: AgateLicker on September 14, 2022, 08:10:06 AM

Second is mafic intrusive. Look into grading relationships between gabbro, diorite and granite; you'll find something similar in the intermediary classifications. Looks like high silica, plagioclase feldspar and lots of biotite mica. Good luck!

May be gravel fill, may be off a monument- diorites are and were commonly utilized for both 'cause it's tuff stuff!