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19 Jul-23:41:20 Re: questions regarding collections' photos (Tar4ntula)
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18 Jul-10:30:28 Re: what's up with minfind? (Bob Kerr)
18 Jul-09:12:36 Re: what's up with minfind? (R Saunders)
18 Jul-08:14:56 Re: collection of tobi (Jose Luis Jara Jara)
18 Jul-07:09:41 Re: mineral collages 5.0 (Chris Rayburn)
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18 Jul-01:44:27 The mizunaka collection - zoisite (Am Mizunaka)
17 Jul-19:54:58 Re: what's up with minfind? (Kushmeja)
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17 Jul-19:10:14 What's up with minfind? (Bob Kerr)
17 Jul-19:07:38 What's up with minfind? (Bob Kerr)
17 Jul-15:12:01 Re: collection of michael shaw (Michael Shaw)
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  Topic: Information about a Rhodochrosite specimen
Charlotte

Replies: 3
Views: 2855

PostForum: Minerals and Mineralogy   Posted: Nov 18, 2017 08:58   Subject: Information about a Rhodochrosite specimen
I have been made aware of a unique color-zoning in Rhodochrosite, loosely referred to as "Peppermint Rhodochrosite" (Photo attached). This apparently showed up as a single find exhibited at ...
  Topic: A terrible nuisance
Charlotte

Replies: 17
Views: 10296

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: Nov 04, 2017 08:47   Subject: Re: A terrible nuisance
Amen!

Not only a useless and fruitless labor but there is real risk of scratching a softish mineral in attempting to remove the blasted tac (sp?). A double curse on those who stick it to a crystal ...
  Topic: Rhodochrosite geodes
Charlotte

Replies: 1
Views: 6024

PostForum: Mines and Mineral Localities   Posted: Feb 06, 2016 17:01   Subject: Rhodochrosite geodes
Sometime ago there was a brief thread discussing the rarity, or even existence, of Rhodochrosite crystals in true geodes (not just half-vugs). At the time John Cornish regaled us with his story about ...
  Topic: Manganese Carbonate
Charlotte

Replies: 4
Views: 4082

PostForum: Minerals and Mineralogy   Posted: Sep 12, 2014 08:49   Subject: Re: Manganese Carbonate
MnCO3 as Rhodochrosite typically does not fluoresce. There are exceptions. A minority of specimens that are classic Rhodochrosite (not Manganocalcite) from N'Chwaning mine, South Africa, have been sh ...
  Topic: New Book: Rhodochrosite, Crystals of Drama and Nuance
Charlotte

Replies: 16
Views: 24444

PostForum: Mineralogical Literature   Posted: May 22, 2014 09:28   Subject: Re: New Book: Rhodochrosite, Crystals of Drama and Nuance
Thanks, John. I appreciate the kind words.

What a shame about the geode. It would have been a world-beater. Needed to be confirmed though, obviously. I share your disappointment having just disprov ...
  Topic: New Book: Rhodochrosite, Crystals of Drama and Nuance
Charlotte

Replies: 16
Views: 24444

PostForum: Mineralogical Literature   Posted: Mar 16, 2014 08:47   Subject: Re: New Book: Rhodochrosite, Crystals of Drama and Nuance
Keith,
Always good to hear kind words about the book. Thanks for the message.
Bill
  Topic: A mineralogical trip through the states of USA - North Carolina
Charlotte

Replies: 51
Views: 54804

PostForum: A mineralogical trip through the states of USA   Posted: Jan 27, 2014 09:01   Subject: Re: A mineralogical trip through the states of USA - North Carolina
Excellent example of what appears to be the pseudo-octahedral habit of rhodochrosite that I have seen only from Foote. The superb photograph clearly shows the trigonal symmetry masquerading as octahed ...
  Topic: New Book: Rhodochrosite, Crystals of Drama and Nuance
Charlotte

Replies: 16
Views: 24444

PostForum: Mineralogical Literature   Posted: Jan 03, 2014 13:30   Subject: Re: New Book: Rhodochrosite, Crystals of Drama and Nuance
Chris,
Thanks for your input. I am glad you enjoyed the book. And just as glad to hear of the typos. After chasing innumerable typos and a raft of outside reviews, I am delighted to hear of only a 'f ...
  Topic: New finds at Santa Eulalia, Chihuahua, Mexico
Charlotte

Replies: 10
Views: 12955

PostForum: Mines and Mineral Localities   Posted: Dec 17, 2013 09:20   Subject: Re: New finds at Santa Eulalia, Chihuahua, Mexico
Peter- Very nice additions to the already beautiful and diverse Santa Eulalia Rhodochrosites. The "fairy ring" and 1.5 cm gemmy crystal are wonderful. And the crystal itself appears to be a ...
  Topic: New Book: Rhodochrosite, Crystals of Drama and Nuance
Charlotte

Replies: 16
Views: 24444

PostForum: Mineralogical Literature   Posted: Dec 14, 2013 11:45   Subject: Re: New Book: Rhodochrosite, Crystals of Drama and Nuance
Hey, John,
Wow! What a story and what a find. I have never seen rhodochrosite crystals in those or any geode. Massive rhodochrosite filling an agatized geode is the closest I have come and that one w ...
  Topic: New Book: Rhodochrosite, Crystals of Drama and Nuance
Charlotte

Replies: 16
Views: 24444

PostForum: Mineralogical Literature   Posted: Dec 14, 2013 08:58   Subject: Re: New Book: Rhodochrosite, Crystals of Drama and Nuance
Thank you, Christophe. I am interested in all feedback. On line publishing can be kept up to date immediately, so new data or suggestions can be explored and disseminated promptly as needed, thus bein ...
  Topic: New Book: Rhodochrosite, Crystals of Drama and Nuance
Charlotte

Replies: 16
Views: 24444

PostForum: Mineralogical Literature   Posted: Dec 13, 2013 08:28   Subject: Re: New Book: Rhodochrosite, Crystals of Drama and Nuance
Ed,

The only bookstore carrying it so far is Buckskin Booksellers in Ouray, Colorado. Generally it will only be available through the on-line publisher at blurb.com

At Tucson, a few books will b ...
  Topic: New Book: Rhodochrosite, Crystals of Drama and Nuance
Charlotte

Replies: 16
Views: 24444

PostForum: Mineralogical Literature   Posted: Dec 12, 2013 16:52   Subject: Re: New Book: Rhodochrosite, Crystals of Drama and Nuance
Thank you Jordi for the generous words. I am happy to announce the Rhodochrosite book on the Forum. I always like to emphasize that this is a book for collectors. As such, there is the most emphasis o ...
  Topic: Rhodochrosite twinning
Charlotte

Replies: 7
Views: 9278

PostForum: Minerals and Mineralogy   Posted: Apr 19, 2008 09:53   Subject: Re: Rhodochrosite twinning
That's a beauty! Great example of trigonal symmetry and the first twin of a PINK Rhodochrosite from Mont St.-Hilaire that I have seen. I wonder if the dark core is significant. I am also happy to offe ...
  Topic: Rhodochrosite twinning
Charlotte

Replies: 7
Views: 9278

PostForum: Minerals and Mineralogy   Posted: Apr 18, 2008 14:44   Subject: Re: Rhodochrosite twinning
Thanks, John. It is good to hear someone with your experience and expertise echo my observation. You refer to "such twins". Are you referring to twinning of this particular type (I would lov ...
  Topic: Rhodochrosite twinning
Charlotte

Replies: 7
Views: 9278

PostForum: Minerals and Mineralogy   Posted: Apr 18, 2008 11:57   Subject: Rhodochrosite twinning
As a collector of Rhodochrosite, I have noticed twinning frequently, but, interestingly, only from one locale - Mont St.-Hilaire. I have not encountered twinning from any of the many other localities. ...
 
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