Help with write-up

Toad
misunderstood rock expert

Only rocks understand me.

Member since September 2004
Posts: 12,798

Help with write-up Sept 21, 2012 12:00:02 GMT -5

Quote

Post by Toad on Sept 21, 2012 12:00:02 GMT -5

Looking to do a write-up on the rocks I tumble - just personal gratification. Rock tumbling isn't nerdy enough, now I want to write about rocks!

Already did internet search of Wonderstone and came up with the attached document. The material I'm working with came from Nevada, so I tried to be more specific to that.

But I'm interested in everything: chemical composition, physical properties, how formed, trivia, uses (other than lapidary), anything else you can think of...

Do you see anything wrong with what I have so far? Tweak, changes, additions... Be brutal (I'd do the same to you ;D )

After I get this finalized I'll put pictures of both rough and tumble polished stones.

Thanks for any help, criticisms, suggestions you can provide.

Todd

Okay - attaching didn't seem to work. Let's just try pasting:

Wonderstone (Nevada)

Common Names: Hickoryite, Wonder Rock

Scientific Name: Rhyolite

Composition: Variable. Silica greater then 68% and feldspars (potassium more than twice the amount of plagioclase). Oxides of iron and magnesium are often present as coloring agents. Common elements include:
· Silicon (Si)
· Oxygen (O)
· Aluminum (Al)
· Potassium (K)
· Sodium (Na)
· Calcium (Ca)
· Iron (Fe)

Physical Properties:
· Moh's Hardness - 6
· what else???

How Formed:
· Nevada material is air-fall tuff erupted at temperatures of 700-850 degrees Celsius. The high silica content creates a highly viscous lava
· Same variable chemical composition as granite and obsidian. It cooled too fast to form crystals as seen in granite, but not so fast as obsidian which is glassy.
· A secondary process after eruption includes penetration by geothermally heated water which deposited pyrite, quartz, hematite and many other trace minerals.
· Iron and manganese are responsible for many of the colors.

Where Found: Common in the western United States (NV, CA, WY)

Last Edit: Sept 21, 2012 12:00:43 GMT -5 by Toad

Convinced myself, I seek not to convince.

Deleted Deleted Member Member since January 1970 Posts: 0	Help with write-up Sept 21, 2012 12:27:14 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Deleted on Sept 21, 2012 12:27:14 GMT -5 You need to add UT to the "Where Found" list of prominent locales.

spicer m spending too much on rocks Member since October 2008 Posts: 337	Help with write-up Sept 22, 2012 1:47:20 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by spicer m on Sept 22, 2012 1:47:20 GMT -5 Toad Sorry I don't have anything to add, But I like the idea. I realy like the How formed part Thanks Mike

Sabre52
Cave Dweller

Me and my gal, Rosie

Member since August 2005
Posts: 20,494

Help with write-up Sept 22, 2012 12:25:44 GMT -5

Quote

Post by Sabre52 on Sept 22, 2012 12:25:44 GMT -5

You could Google a bit on liesegang banding and go into that a bit too as that's the source of the wonderful banded patterns in wonderstone that we enjoy so much. Those banded wonderstone type rhyolites are often alternately named "liesegang stone"...Mel

Toad misunderstood rock expert Only rocks understand me. Member since September 2004 Posts: 12,798	Help with write-up Sept 22, 2012 12:35:50 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Toad on Sept 22, 2012 12:35:50 GMT -5 Thanks, Mel. Never even heard the word before. Will definitely look up.
	Convinced myself, I seek not to convince.

mohs In Memoriam RIP mohstly Member since January 2009 Posts: 19,412	Help with write-up Sept 22, 2012 12:53:19 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by mohs on Sept 22, 2012 12:53:19 GMT -5 right on How did it get its name Hickoryite? Is there a root derivative in Greek for Rhyolite? Us nerds like that type of info I like your-- how it is formed is it found in veins? Loose ? is it primarily igneous ? Ed
	dazagneiss

herchenx Cave Dweller Member since January 2012 Posts: 3,360	Help with write-up Sept 22, 2012 17:15:07 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by herchenx on Sept 22, 2012 17:15:07 GMT -5 What the Mel? Mel I am unceasingly amazed at what you know. Seriously, former college professor? Thanks for being here and educating us, it is amazing and much appreciated.
	John Fort Collins, Colorado USA

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rocknrob: There was a shop in Portland, don't know if it's still there called Kenny and Zukes who made the absolute best pastrami sandwiches I have ever had. The problem is every restaurant thinks their sandwich is worth $20 now and seldom makes the grade. Nov 12, 2024 9:53:31 GMT -5

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