What type of stone?? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 05-10-2012, 04:09 AM Thread Starter
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What type of stone??

Ok Maybe this is a dumb question but what ARE seiryu-ryouh-other common scapeing stones? I mean if they are inert then what are they? If they arnt limestone or something similar? Just curious to their geographical name or whatever. is that right lol?


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post #2 of 8 (permalink) Old 05-10-2012, 11:17 AM
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There is a thread over in the aquascaping forum that is debating the geological identity of Seiryu stone. It seems they are split between eroded limestone and slate, but I can't tell you which is right. Here's the link if you're interested.

https://www.plantedtank.net/forums/aq...yu-stones.html
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post #3 of 8 (permalink) Old 05-10-2012, 05:52 PM Thread Starter
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Alright cool thanks although it does seem like someone could just test the ph in their tank to see if it was limestone, because if it is haha I know a place in washington to get free Ada scaping stones LOL.


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post #4 of 8 (permalink) Old 05-10-2012, 08:40 PM
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I've been intrigued by Seiryu and where exactly it may have come from. I am a geologist, although petroleum in nature. Seiryu is definitely some form of limestone. The pieces I have react vigorously with HCL. They also have calcite veins present.

A few observations and the conclusions I have drawn so far.

Weathered profile, each piece is unique but look similar at the same time. Likely the limestone is exposed in some sort of field above ground and subsequently weathered.

Calcite veining very prominent. Generally associated with Karsted environments.

Limestone outcrops in Japan are relatively limited in scope.

After doing some research, my best guess at where the rock comes from is the Shikoku Karst on the island of Shikoku.



Another possibility is the Akiyoshidai Plateau in the Yamaguchi region.



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post #5 of 8 (permalink) Old 05-11-2012, 01:04 AM
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Great insight and that first pic is great. I am going to snag it
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post #6 of 8 (permalink) Old 05-11-2012, 01:19 AM Thread Starter
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Thats good to know, I always thought ADA scaping stone was something unique, I limited out limestone for such a long time because I thought nobody would want their soft water planted tanks going hard lol. A relative of mine found me some very nice weathered limestone in washington here. (the relative happens to be my father who is a geologist and has maps of the rock deposits LOL)


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post #7 of 8 (permalink) Old 05-11-2012, 02:04 AM
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I always wondered where those stones came from. Now I know I've seriously overpaid for it haha
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post #8 of 8 (permalink) Old 05-11-2012, 02:06 AM Thread Starter
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Yeah, I was going to try to find some but then i was like hmmm lets find out what this stuff is, seems to be stuff i can find for free so im not paying premium lol


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