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Post by Psycho on Sept 18, 2016 20:58:34 GMT -5
I am really new to rockhounding and I know there are several types of jasper available. Is there a list of names and photo descriptions of all the Jasper's ? Or a website with a decent listing. It's hard as hell keeping track of all your specimens when you can't remember the correct names.
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,487
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Post by Sabre52 on Sept 18, 2016 21:39:53 GMT -5
Wow, tall order! There are two ways of classifying jasper types. The simplest of course, is by type ie: brecciated jasper, orbicular jasper, picture jasper etc. That's the simple part. What confuses the matter is common or trade names. There are literally hundreds, if not thousands of names for jasper of various types from various locations and many are not even really "jasper" as many are marine in origin and are technically "chert" and many more are actually rhyolite or silica rich sediments. Many authors have tried to tackle the subject, even Lowell and I with our index that should be linked somewhere here on this site. I even started on my own agate and jasper reference book and gave up after five volumes as the ink fades faster than I could take pics or locate pics and compose pages *L*.
Nice place to start is the web as there are several jasper pages and books listed. Zenz's "Agate" books, I have three huge volumes and volume three is heavily into jasper types, are pretty darn neat if you can afford them. Problem you run into though is a single jasper may even have multiple names depending on collection location etc. Good examples are picture jaspers many of which are not even jasper. Most are named after places but many are not and many have multiple names.
Poppy jasper ( actually a marine chert) goes by so many trade names it is incredible. I'm responsible for a half dozen myself *L*. Most are named after the collecting site ie Morgan Hill Poppy jasper, Hornitos Poppy jasper, Guadalupe poppy. Uvas Creek Poppy, Big Sandy poppy etc but other names abound too as there are a multitude of subtypes. I collected and mined Hornitos types for years and gave type names to several finds from different locations. Ie: Firefly Jasper, Sierra Primrose Poppy, Cosmos Jasper and my favorite " Stinky Horse Hole Jasper" so named because a rancher dropped a dead horse into my buddy and I's prospect pit. Basically, if you find it, you can name it and eventually, that name may take *L*. All those names by the way, made it into Zenz's book. OK, my fault for making things more complicated. *L*
So, to put it simply, lots of info out there but no main list that I know of, and it would be of little use anyway because new names are constantly being added as new finds are made. That being said, many types have been around in collections and for sale for so long that good typical examples are readily recognizable and well known, so it is still fun to look at all the books and websites because you will be able to accurately ID many of the varieties as to location...Mel
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Post by Psycho on Sept 18, 2016 21:49:48 GMT -5
Thanks for the input Mel. You are right there sure are many parallel names for the same Jasper's. I like your jasper names as well lol. Maybe someday I will run across stinky horse hole jasper lol. I love it.
Frank
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Post by Pat on Sept 18, 2016 22:08:15 GMT -5
Someone on this forum put together some online volumes of various rock along with good photos and where they are from.
I think his name might be Lowell. I'll look for it.
I suspect many here will remember it.
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Post by Psycho on Sept 18, 2016 22:46:44 GMT -5
That would be great to have available. Thanks Pat
Frank
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Post by Pat on Sept 18, 2016 22:55:32 GMT -5
Might be called AGATE INDEX. don't remember.
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Post by Pat on Sept 18, 2016 23:14:52 GMT -5
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Mark K
Cave Dweller
Member since April 2012
Posts: 2,768
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Post by Mark K on Sept 19, 2016 7:25:20 GMT -5
There is a book. I can't look for it right now as I am on the way to work, but remind me later.
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Post by Psycho on Sept 19, 2016 9:16:27 GMT -5
Thanks mark I will send a pm this evening.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,711
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Post by Fossilman on Sept 19, 2016 10:21:03 GMT -5
I have a book called "Collecting Agates and Jaspers of North America... Very interesting read and loaded with rock photos....
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Mark K
Cave Dweller
Member since April 2012
Posts: 2,768
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Post by Mark K on Sept 19, 2016 16:55:57 GMT -5
That is it.
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Post by Peruano on Sept 19, 2016 17:35:13 GMT -5
Not encyclopedic, but the array will sure make you salivate -- try the world of jaspers at the following link. I agree with everything above. Jasper is a fuzzy term and people's terminology is quite loose. www.worldofjaspers.com/
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Post by rockjunquie on Sept 19, 2016 20:57:11 GMT -5
Not encyclopedic, but the array will sure make you salivate -- try the world of jaspers at the following link. I agree with everything above. Jasper is a fuzzy term and people's terminology is quite loose. www.worldofjaspers.com/Yeh, great book. The eye candy alone is worth the price.
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