Show Rocks, Minerals, Fossils and Gems

Joined
Feb 15, 2014
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11,308
Location
Southwest Utah
I finally took a few macros of a few of my rock collection specimens. Please show yours also, for non macro and larger than you can carry rocks, post them in: https://www.mu-43.com/threads/show-rock-formations.15474/
And if you know what they are, please share the info.

Iron ore (the triangles) with crystals.

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EM123807-1 by Harvey Richards, on Flickr

Fossil of aquatic gastropods (my educated guess).

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EM123957-1 by Harvey Richards, on Flickr
 
Joined
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Messages
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Location
Southwest Utah

PapaShane

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Joined
Feb 28, 2018
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I am unsure what this is called, but I find it all over the area.

View attachment 821163EM123847-1 by Harvey Richards, on Flickr

Great photos! This looks like chalcedony, AKA one of many varieties of microcrystalline quartz/"siliceous ooze".

Can you share your technique/setup? I've been meaning to photograph my collection and was considering LiveComp to achieve even "scientific" lighting.
 
Joined
Feb 15, 2014
Messages
11,308
Location
Southwest Utah
Great photos! This looks like chalcedony, AKA one of many varieties of microcrystalline quartz/"siliceous ooze".

Can you share your technique/setup? I've been meaning to photograph my collection and was considering LiveComp to achieve even "scientific" lighting.
The quartz / siliceous ooze sounds correct. I often find this in cliffs and exposed outcroppings.

I think all of the photos posted here so far were taken with the Olympus 60 mm and EM1 II, using in camera focus stacking. I have a 24" light cube that I used along with a Benro tripod. I have various lights that I used, because it seems every subject needed something different. I will try to reassemble everything and take some photos of the set up.
 

PapaShane

New to Mu-43
Joined
Feb 28, 2018
Messages
6
The quartz / siliceous ooze sounds correct. I often find this in cliffs and exposed outcroppings.

I think all of the photos posted here so far were taken with the Olympus 60 mm and EM1 II, using in camera focus stacking. I have a 24" light cube that I used along with a Benro tripod. I have various lights that I used, because it seems every subject needed something different. I will try to reassemble everything and take some photos of the set up.
That would be great, thank you! I really appreciate it. Maybe one day this week I'll get around to attempting a few rock portraits, something to do while working from home!
 

archaeopteryx

Gambian sidling bush
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An agate streak and some revealed structures on the cleavage face of a parking lot boundary rock that seemed interesting. I didn't measure the grains but I think rhyolite sized. 271 stack at 3.3x.
 
Joined
Feb 15, 2014
Messages
11,308
Location
Southwest Utah
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