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Let's Rock => Identifications of Materials => Topic started by: 55fossil on July 21, 2018, 10:17:33 AM

Title: it's green, please help ID
Post by: 55fossil on July 21, 2018, 10:17:33 AM

    Yard sale purchase, thought it was going to be great....  It is hard like agate and cuts like it. But it falls apart in the saw like many opals or some Jade. Several shades of green with white mottling and stringers running through the rough. Probably from the northwest USA but.... I have not tried to polish it as I really got disappointed as it broke apart. Any ideas????  There are some translucent areas but at 1/4 inch slab it is almost opaque. This was the best slab I got but it will probably break further apart. One x one inch is about the largest piece I can get.

Title: Re: it's green, please help ID
Post by: lithicbeads on July 21, 2018, 10:23:38 AM

Possibly the fractured yellow serpentine being sold  that is mined from eastern Washington.

Title: Re: it's green, please help ID
Post by: Slabbercabber on July 21, 2018, 12:15:50 PM

Looks like Alaska jade.

Title: Re: it's green, please help ID
Post by: southerly on July 22, 2018, 02:46:15 PM

Serpentine would be my first guess for the pic, then opal. If it does not test for either of those who knows.

David

Title: Re: it's green, please help ID
Post by: peruano on July 22, 2018, 02:52:35 PM

I have some serpentine apparently identical to this.  It does work up nicely.  I suspect it is from Mexico. 

Title: Re: it's green, please help ID
Post by: 55fossil on July 22, 2018, 05:32:05 PM

thanks all...  I would lean towards it being Serpentine from the hardness and other visible features. so pretty, so fractured