Can you help identify this pink rock

kursedin off to a rocking start Member since August 2013 Posts: 8	Can you help identify this pink rock Aug 18, 2013 19:41:38 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kursedin on Aug 18, 2013 19:41:38 GMT -5 found this rock in a creek near the grand river in michigan. any ideas?

Jugglerguy
gets rocks for Christmas

Alpena, MI

Member since December 2011
Posts: 6,874

Can you help identify this pink rock Aug 18, 2013 20:03:49 GMT -5

Quote

Post by Jugglerguy on Aug 18, 2013 20:03:49 GMT -5

The brown one in the middle looks like it might be Petoskey stone, or possibly some other coral. The one below it is also a coral, possibly favosite. The two light colored ones to the left look like coral too. I have no idea what the rectangular one is. The pink one could be quartzite, or feldspar (but the cleavage looks wrong), or possibly calcite. If it's calcite, it would react with acid. Those are my guesses, but I'm far from an expert.

Rob
Michigan Rocks YouTube Channel

sheldon74 having dreams about rocks Member since May 2013 Posts: 59	Can you help identify this pink rock Aug 18, 2013 20:03:54 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by sheldon74 on Aug 18, 2013 20:03:54 GMT -5 Which one is pink? Hard to tell without good pictures. The top one looks like it might be quartz.

kursedin off to a rocking start Member since August 2013 Posts: 8	Can you help identify this pink rock Aug 18, 2013 20:48:27 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kursedin on Aug 18, 2013 20:48:27 GMT -5 The top one. its a pale pink, much pinker when wet. i had similar ideas as to what it could be, someone had suggested it could be gypsum. thanks!

Jugglerguy gets rocks for Christmas Alpena, MI Member since December 2011 Posts: 6,874	Can you help identify this pink rock Aug 18, 2013 21:05:16 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Jugglerguy on Aug 18, 2013 21:05:16 GMT -5 If it's gypsum, it would be extremely soft (2 on the mohs scale). You would be able to scratch it with your fingernail because your fingernail has a hardness of 2.5.
	Rob Michigan Rocks YouTube Channel

kursedin off to a rocking start Member since August 2013 Posts: 8	Can you help identify this pink rock Aug 18, 2013 21:34:11 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kursedin on Aug 18, 2013 21:34:11 GMT -5 Nope its really hard. looks pretty crystalline too

helens no longer being taken for granite Member since January 2012 Posts: 8,794	Can you help identify this pink rock Aug 19, 2013 17:59:52 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by helens on Aug 19, 2013 17:59:52 GMT -5 If it's pink sparkly, and looks like sherbet in the sun, it might be peach aventurine, which looks like this: If it's really hard, it might just be Rose Quartz: www.mindat.org/min-3456.html

kursedin off to a rocking start Member since August 2013 Posts: 8	Can you help identify this pink rock Aug 20, 2013 10:19:25 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kursedin on Aug 20, 2013 10:19:25 GMT -5 Hmm! i dont know. it's definitely very hard. its got striations of some translucent/light gray crystal looking stuff if you look realy close.

NatureNut no longer being taken for granite Peace Member since November 2008 Posts: 7,893	Can you help identify this pink rock Aug 20, 2013 10:24:16 GMT -5 via the ProBoards App Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by NatureNut on Aug 20, 2013 10:24:16 GMT -5 Rose quartz with smoky quartz?

kursedin off to a rocking start Member since August 2013 Posts: 8	Can you help identify this pink rock Aug 20, 2013 10:24:50 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by kursedin on Aug 20, 2013 10:24:50 GMT -5 tinypic.com/r/u9g91/5