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Very Hot Topic (More than 25 Replies) Another Day at Moonstone Creek & Mica Dumps (Read 10999 times)
Tim4d
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Another Day at Moonstone Creek & Mica Dumps
Oct 11th, 2015 at 12:22am
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Chip says, Hurry up old man! It's already 10:30 and you just finished packing?

Hunter orange for safety. We heard beagles calling across the River it seemed. A few gunshots from the other side of the farm. The landowner kindly kept us at opposite ends of the property.

Found largest kyanite blades yet on edge of plowed field in a certain area between van and where we enter the woods.

This spot usually produces some good stuff. Seems to be the source of what can be found a bit downstream, floated by flood stage waters.
« Last Edit: Oct 11th, 2015 at 5:49am by Tim4d »  

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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #1 - Oct 11th, 2015 at 12:25am
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Oh darn. Forgot to resize all these photos. Will redo and add more tomorrow.
  
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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #2 - Oct 11th, 2015 at 10:01am
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Moonstone can be found where the white and black pegmatite components join but also floating in the quartz layer. I think these must be from fissures that later got jumbled in more faulting or shear, because it has both angular and rounded quartz.  From creek bottom up it goes weathered schist; pegmatite white and black dipping layers and veins, with vertical fissures white or black going up into the quartz layer, which often is in grayish clay, and then the topsoil.

The black vertical fissure pushes up to the quartz layer.

Downstream a little ways, I was digging a hole in the creek to wash/screen material from a promising area. Came up with this blue clay. Was only under the water. Maybe it weathers to the gray clay when exposed to air.
  

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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #3 - Oct 11th, 2015 at 10:08am
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Near the blue clay was a place to slow down and look for shape and schiller. The shape of the creek must have made flood hydraulics that dropped out moonstone and the crumbly white material often associated with it. I prospected uphill along this bank but found nothing, pretty much confirming this is from what washed out of the first area, or maybe further upstream. That's moonstone just beyond Chip's nose.

Shiny flat surfaces of moonstone at the "slow down and look" area.
  

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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #4 - Oct 11th, 2015 at 10:11am
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Further downstream stone winks in the sun.  Looks good but was all crumbly and shallow.  Was part of a broad vertical fissure.

Trying to show vertical fissure from cultivator up, but hard to see in photo.
  

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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #5 - Oct 11th, 2015 at 10:14am
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A prominent outcrop and little waterfall must make a good territory marking post. Nothing dead or rotten on the rock, but Chip had to rub and mark it like nothing else we ran across.  Maybe a territory marker for foxes or coyotes.

First sign of the mine dumps. Dug here some and got plenty of mica scraps. From this point downstream the land shapes are up and down -- the overgrown rock dump piles left from the old timers mining mica.
  

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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #6 - Oct 11th, 2015 at 10:17am
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Dumps were pushed right into creek here. On other side is a little chasm the was blasted out. This dump mound/dam makes the chasm like a bathtub. Water flows underneath and into the creek.

I was dragging butt on the way back. Chip kept showing me the easiest path, in, along or above the creek as need be, until we got back to the van. He would trot ahead, then look back to make sure the old man was following.
  

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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #7 - Oct 11th, 2015 at 10:21am
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The way back.

The landowners have adirondack chairs by this pond for watching sunsets.

Mica, moonstone, quartz, kyanite, and a jumble of mica on matrix at top.

This is the largest and bluest kyanite blade I have found at this site. Backlit with LED flashlight shining into a quartz piece below.
  

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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #8 - Oct 11th, 2015 at 2:07pm
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Was thinking about the bathtub chasm. Miners would have left it open to the creek, and indeed from the topside the dumps on either side and uphill are much higher. Perhaps a past landowner bulldozed dump material to dam the outflow and make a pond. There are several other lesser mines up and down this creek , and they all drain freely to creek level.
  
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JoeM
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #9 - Oct 12th, 2015 at 5:59pm
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Great report, tim, Thanks!
That looks like a really fun place to hunt and you seem to know it well.
Nice looking moonstone and kyanite, and mica.
I'd like to cab a piece of the moonstone for you just to see what it looks like. Wink
Your last pic of your days finds has a half white and black piece in the middle top,
what's that?
Thanks again for the report.
  
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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #10 - Oct 12th, 2015 at 8:30pm
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Joe, how many chunks do you want?  I have plenty, but most have that parallel planes, so I've always wondered if it would hold up. I suppose I could spare one of the primo pieces that have the larger clear zones.  Smiley
  
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #11 - Oct 12th, 2015 at 8:34pm
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The half and half will make a nice cabinet specimen representing the tons of similar material in the mica mines dumps. Feldspar and jumbled mica. If I just Chip off that little nub you can see in the first photo, it has a perfectly flat base!
  

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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #12 - Oct 12th, 2015 at 8:39pm
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I took the 3 matrix photos at the kitchen sink where we have a new LED bulb. Color fidelity is good with these new bright LED bulbs.
  
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Tim4d
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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #13 - Oct 12th, 2015 at 9:00pm
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Here is one of the best. It's 1.5 x 1.25 x .75 inches. Schiller plays from the narrow dimension however so max cabochon would be an oval of about .75 x 1.25.
  

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Re: Another Day at Moonstone Creek & Mica Dumps
Reply #14 - Oct 13th, 2015 at 10:33am
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Oh yeah, that's a real pretty looking piece of the moonstone!
I don't think we want to start with the best. Wink
Pick out a couple of "maybes" and we'll see what they do. Get in touch or drop them by Roberts' next time you're in town.
I'd love to play with some of it.

Ya'kno, the only thing that specimen piece lacks is a nice big baby blue beryl sitting on it!
Have you any beryl from this site?
  
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