pRoDiEuS 34 Posted July 10, 2019 Share Posted July 10, 2019 I was out yesterday rock hunting in a new location. I found 4 possible agates, 3 possible petrified wood pieces, and 2 possible rose quartz pieces. What do you all think? Even if they are not what I think they are, they are pretty cool looking in my opinion lol. I will post the photos not lit and lit with a light. 1 Quote Link to post Share on other sites
Diggingd 36 Posted July 10, 2019 Share Posted July 10, 2019 Looks more like a petrified wood chip Haha, 18-20 I think is petrified wood tho my friend. Quote Link to post Share on other sites
pRoDiEuS 34 Posted July 10, 2019 Author Share Posted July 10, 2019 13 minutes ago, Diggingd said: Looks more like a petrified wood chip Haha, 18-20 I think is petrified wood tho my friend. Lol could be. Do the other ones look like agates to you? Quote Link to post Share on other sites
d_day 359 Posted July 11, 2019 Share Posted July 11, 2019 3 hours ago, pRoDiEuS said: Lol could be. Do the other ones look like agates to you? I think everything above the pet wood looks like quartzite. 1 Quote Link to post Share on other sites
pRoDiEuS 34 Posted July 11, 2019 Author Share Posted July 11, 2019 1 hour ago, d_day said: I think everything above the pet wood looks like quartzite. So what's the difference between quartzite and an agate? I am confused because everything I find is quartz or quartzite but lots of people seem to find agates and to me they pretty much look the same. How do you tell the difference? Quote Link to post Share on other sites
Bedrock Bob 4,192 Posted July 11, 2019 Share Posted July 11, 2019 1 hour ago, pRoDiEuS said: So what's the difference between quartzite and an agate? I am confused because everything I find is quartz or quartzite but lots of people seem to find agates and to me they pretty much look the same. How do you tell the difference? The size of the crystals that make up the piece are the difference. Agate is cryptocrystalline or microcrystalline like glass. Quartz is crystalline like a sugar cube. Check out the threads in this forum. I have written a half dozen dissertations on the different forms of silicon dioxide. Your pieces of petrified wood are agatized and "cryptocrystalline". They are a form of agate and break with glassy surfaces. The rose quartz "quartzite" is not glassy when it breaks. It breaks along the cleavage planes of tiny crystals and is rough like a broken sugar cube. Not slick sided like broken glass surfaces. Agate is translucent and "clear" where quartzite is translucent and "frosty". That "frosty" look comes from the small but visible crystal structure. 4 1 Quote Link to post Share on other sites
Diggingd 36 Posted July 11, 2019 Share Posted July 11, 2019 I agree with Bob, just keep rockhounding! You'll find some agates just a matter of time Quote Link to post Share on other sites
fuss 41 Posted July 13, 2019 Share Posted July 13, 2019 Like already said, none look like agates. Here is a decent reference on understanding the different quartz varieties. http://quartzpage.de/ Quote Link to post Share on other sites
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