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Techniques for CollectorsDendritic Jasper

13th Apr 2016 16:50 UTCMatthew House

Hello,

I originally posted this photo in the Identity Help forum to try to find a possible locality and name for this chunk of yellow/tan dendritic jasper that I recently acquire. I thought maybe someone here in the lapidary forum might have an idea about where it is from and what the name used for it is. The person I got it from said it was from Texas. From the research I've done so far it looks to me like "yellow tree jasper" from Wyoming. Any ideas? Thanks.

Matt

13th Apr 2016 17:41 UTCRob Woodside 🌟 Manager

The matrix may well be yellow jasper, but the dendrites are manganese oxides and this could have come from many localities. Lapidarists tend not to bother with localities. Good luck with it.

14th Apr 2016 00:35 UTCPaul Brandes 🌟 Manager

I would tend to agree with "yellow tree jasper", but it can come from more places than just Wyoming.

14th Apr 2016 01:18 UTCMatthew House

Thank you both. I thought it would be tough to find an exact locality. I purchased it along with a lot of lapidary materials and tools. I have never done any type of lapidary work so it's been very interesting but also a little frustrating. Most of the specimens were collected in the 1950-70's and are well labeled. Just a few of them are general or have no labeling at all. Thanks again.

Matt

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