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Rodingite
"Blackwalls" and pastels |  | ||||
| New Note: Apparently the stuff that looks like epidote may be in some cases be vesuvianite. The epidote replacments are probably a result of the vesuvianite in the rodingites, or the source of my information about it being epidote is wrong. They are similar chemically. I have taken a lot of pictures of what I brought back from Grandy Creek. I have not attempted to classify these materials but most come from the 'reaction zones' and most are rodingite (whites, tans, greens, greys and some pink) with varying degrees of composition. Some with serpentines and serpentinite and maybe hydrogrossular garnet (not identified on Grandy Creek yet, see however garnierite....found it!! added picture of sample of supposed HGG from Grandy Creek below), olivine, tremolite and epidote (olive or pea-soup green slickenslides and slicks) that replaced another mineral. I included everything I thought might be useful in identifying an area as being geologically favorable for jade. Grandy Creek Rodingite, et al Go to the main view to get a title to reference (e.g. "rodingite 1") if you wish to comment on a particular photo. Or just comment on that site. Off Site Slideshow Off Site Grid View Off Site Main View On Site Album DeerCreek,Oso Hand samples Deer Creek,Oso Purples, jade, HGG Some of the pictures above and below link to albums as well. | RamEyeJade Here is the contact of rodingite with jade and serpentinite. The eye is fused to the jade. Above that,(on the nose), the rodingite is brecciated, cemented with serpentinite or nephrite. The picture links to an off site album with photos of different angles, the backside, close-ups, etc. | ||||
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| This is just a crazy piece. The green stuff (likely epidote) seeps out of the chalky carbonate(?) area. | Mushroom "Blackwall" Black serpentine on the "white stuff" |
Additional Samples, mostly neat, atypical pieces (click on photo for multiple views)
  Hydrogrossular Garnet | These two samples are from Deer Creek, Oso. Unlike the Rodingite from Grandy Creek, these are rich in obvious Hydrogrossular garnet (HGG). The stuff on Grandy creek must be white or is hiding in the garnierite (presumed) that can be found there. It may also account for the pinks...or I just didn't notice the pieces like this do to rinds of similar color to the garnierite, but they shouldn't have been so weathered. Garnierite |
 Contact | Grandy Creek contact on serpentinite. Metasomatism caught in action. If the original rocks had been of different composition this would be an excellent zone to look for crystals (e.g. garnets other than HGG). The only crystals I've found on Grandy on the rodingite are very tiny olivines (I believe). Too tiny to take a photo of. This piece also has the replacement epidote. |
 Serp Cap | This is one of the most interesting pieces I've found. It's a cap of serpentin(ite) on rodingite on something (maybe rodingite) that has distinct cleavage. From Grandy Creek. You'll need to view the album to see the cleavage ;-) |
 Illusion | It's an illusion, it's not jade but rather a nice serpentinite slick (polymorph?) on rodingite. Grandy Creek. |
 Cream | This comes from the contact zone as well and appears to show some botryoidalism (you'll see a bubble on it). I really don't know what to make of it. I keep it in the display cabinet because its so neat and it's creamy greenish-blue color hints at something good. The color is hard to photograph...this shot somehow caught it ("wet"). Grandy Creek of course. Actually I think the color hear is off a little...the album pics are a little closer but not as clear. |
 Finney Creek | So far this is the only rodingite I've brought back from Finney Creek. The green is serpentine, as well the weathered out sills or dikes. Not the"green stuff"(epidote) as seen on other specimens as it is soft, it just happens to have a similar green color to it. |
 Breccias | Rodingite breccia, Grandy Creek. Cemented with the green stuff (replacement epidote) usually found as slickenslides or slicks of exposed sills or dikes (or whatever. There's rarely bedding planes to tell, they go every which-a-way) |
 Deer Creek | Another Hgg rodingite from Deer Creek...or its jade;-) Really the grain size seems to give it away, but I could be wrong as by definition HGG is massive(?) at this point this coloration will always mean HGG to me. |
 Serpentine Knob | Serpentine Knob on the rodingite from grandy Creek. Maybe soapstone. I haven't bothered to learn about soapstone, so I'm probably calling soapstones serpentinite. I originnaly thought soapstone had a hardness of 1, maybe 2 but apparently it can go as high as 7 do to impurities, so I just don't know. It being a metasomatic/metamorphic rock after serpentinite just adds to my annoyance. |
 Slickenslide | Slickenslide of the green stuff from Grandy Creek. Backside shows the rodingite. The green stuff is likely epidote that replaced another mineral. |
 Olive Dragon | This is a heavy rock! We call it the dragon because my Brother-in-law wants to carve a dragon's head out of it. It is riddled with the green stuff (epidote). |
 Baby Dragon | Tan Rodingite from Grandy Creek with the green stuff (epidote) and serpentinite(?) on the left end (not shown in this view). |
 Serpy | Finney Creek |
 Tremolite Covered | Deer Creek maybe jade inside this one...or even chatoyant jade. |
 Three rodingite samples | From Bear and Pilchuck Creeks Note the blackwall's brown which seems to be common there. |
 Purples from Deer Creek | More examples from Deer creek on "Deer Creek Spring '09" gallery... PURPLES and Hydrogrossular Garnets...may indeed be jade and so too the purples (or they are HGG too) I just don't know at this juncture. |
 Grandy Creek HGG? | |
 Grandy Creek HGG? Close-up | |
gamaliel114 |
Latest page update: made by gamaliel114
, Sep 30 2009, 6:57 PM EDT
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Keyword tags:
deer creek
epidote
finney creek
garnet
grandy creek
hydrogrossular
jade
links
nephrite
pilchuck
rodingite
serpentine
serpentinite
temolite
washington
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