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A mineralogical trip through the states of USA - Indiana
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Bob Harman




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PostPosted: May 27, 2018 14:47    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

One of my 2 cases at the recent 2018 Cincinnati show. The show theme for minerals was calcite and its many crystal forms.


fullsizeoutput_292d.jpeg
 Mineral: Calcites
 Locality:
Indiana, USA
 Description:
Some of these examples have never been previously displayed. The first time these have all been displayed together in 1 case.
 Viewed:  2708 Time(s)

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 Mineral: Calcites
 Locality:
Indiana, USA
 Description:
 Viewed:  2696 Time(s)

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fullsizeoutput_292f.jpeg
 Mineral: Calcites
 Locality:
Indiana, USA
 Description:
 Viewed:  2693 Time(s)

fullsizeoutput_292f.jpeg


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Bob Harman




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PostPosted: Jul 27, 2018 14:07    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

Two examples of Aragonite sprays on Quartz with some corroding iron oxides (limonite). Both self collected about 10 years ago.


fullsizeoutput_2814.jpeg
 Mineral: Aragonite on Quartz
 Locality:
Monroe County, Indiana, USA
 Dimensions: the diverging aragonite sprays are 2 cm - 3 cm.
 Description:
 Viewed:  2262 Time(s)

fullsizeoutput_2814.jpeg


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Bob Harman




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PostPosted: Aug 07, 2018 16:01    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

Two more examples of Indiana Millerite from my collection. Both were self-collected about 2007.


fullsizeoutput_2cf.jpeg
 Mineral: Millerite on Quartz
 Locality:
Harrodsburg area, Clear Creek Township, Monroe County, Indiana, USA
 Dimensions: The millerite spray is 1.5 cm
 Description:
 Viewed:  2153 Time(s)

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fullsizeoutput_2a03.jpeg
 Mineral: Millerite nestled in Quartz
 Locality:
Harrodsburg area, Clear Creek Township, Monroe County, Indiana, USA
 Dimensions: The millerite spray is 2.0 cm
 Description:
 Viewed:  2163 Time(s)

fullsizeoutput_2a03.jpeg


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Bob Harman




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PostPosted: Aug 10, 2018 20:56    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

One of the so called hallmarks of the rock structure called a quartz geode is that the quartz crystal tips are suppose to point inward toward the center of the cavity. While this is generally true, a very small percentage have other appearances. These are a few; all self collected.


fullsizeoutput_246b.jpeg
 Mineral: Quartz
 Locality:
Indiana, USA
 Dimensions: Both are about 9 cm
 Description:
Quartz geodes
Both examples have interesting free form quartz areas within the cavity.
 Viewed:  2096 Time(s)

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fullsizeoutput_1e34.jpeg
 Mineral: Quartz
 Locality:
Indiana, USA
 Dimensions: geode is 10.0 cm
 Description:
Quartz Geode
Several quartz crystals lying side by side. The largest crystal is a full 1.0 cm and doubly terminated. Very rare.
 Viewed:  2095 Time(s)

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fullsizeoutput_1e35.jpeg
 Locality:
Indiana, USA
 Dimensions: 1.0 cm doubly terminated crystal
 Description:
Quartz geode
Close up of above example.
 Viewed:  2099 Time(s)

fullsizeoutput_1e35.jpeg


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Bob Harman




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PostPosted: Dec 07, 2018 11:29    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

Two unusual examples from my collection.

The first is a 15 cm x 15 cm geode showing a double cavity layer of druzy crystalline quartz tips atop blue-gray microcrystalline quartz (chalcedony).

The second example is an 11 cm x 7 cm oval and bi-septate geode with one cavity showing blue-gray microcrystalline quartz (chalcedony), while the adjacent cavity contains druzy clear quartz crystal tips.

As I understand crystal formation as related to crystal size, the faster the crystal forms, the smaller the crystal might be. So the formation of microcrystalline quartz (chalcedony) implies rapid formation. Interesting how this bi-septate example might have formed. BOB



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 Mineral: Quartz with Quartz (variety chalcedony)
 Locality:
Indiana, USA
 Dimensions: 15 cm x 15 cm
 Description:
Crystalline quartz atop microcrystalline quartz (chalcedony)
Self collected about 10 years ago.
As seen , some patchy iron staining.
 Viewed:  1691 Time(s)

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fullsizeoutput_2b69.jpeg
 Mineral: Quartz with Quartz (variety chalcedony)
 Locality:
Indiana, USA
 Dimensions: 11 cm x 7 cm
 Description:
BI-septate example with druzy crystalline quartz and microcrystalline quartz (chalcedony)
Self collected about 12 years ago
 Viewed:  1694 Time(s)

fullsizeoutput_2b69.jpeg


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Bob Harman




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PostPosted: Jan 07, 2019 18:46    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

From Washington County Indiana come the largest geodes, not only in Indiana, but probably in the US Midwest. Also found are many large colorful and very photogenic examples with collectible calcites. I have shown several in previous posts and here are 2 more. BOB


fullsizeoutput_2c24.jpeg
 Mineral: Calcite on Dolomite
 Locality:
Washington County, Indiana, USA
 Dimensions: Oval example 16 cm x 12 cm. Calcites up to 1.3 cm
 Description:
Self collected in 2013
 Viewed:  1522 Time(s)

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fullsizeoutput_2c20.jpeg
 Mineral: Calcite on Dolomite
 Locality:
Washington County, Indiana, USA
 Dimensions: Oval geode is 20 cm. Calcites are up to 2 cm
 Description:
Self collected in 2015.Large cabinet sized example, well displayed and very photogenic.
 Viewed:  1526 Time(s)

fullsizeoutput_2c20.jpeg


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Bob Harman




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PostPosted: Jan 10, 2019 19:48    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

A recent quality find of a Baryte on Quartz


fullsizeoutput_2c33.jpeg
 Mineral: Baryte on Quartz
 Locality:
Mission Valley Ravine, Monroe County, Indiana, USA
 Dimensions: nicely terminated 4.3 cm Baryte in 11 cm Quartz geode
 Description:
Self collected about 2 years ago by a collector friend of mine.
 Viewed:  1417 Time(s)

fullsizeoutput_2c33.jpeg


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Bob Harman




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PostPosted: Jan 29, 2019 13:52    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

Many geodes that, when opened, happen to break badly, can still be salvaged. Very collectible areas can be culled from the broken examples. These are 2 more such examples. Calcite on Quartz and Calcite on Dolomite.

Rather than being a "geode" the examples now become more traditional "specimens". BOB



fullsizeoutput_2c38.jpeg
 Mineral: Calcite and Dolomite on Quartz
 Locality:
State Route 37 road cuts, Harrodsburg, Clear Creek Township, Monroe County, Indiana, USA
 Dimensions: The Calcite crystals are up to 3.5 cm
 Description:
Segment of a very large geode. Self collected about 12 years ago.
 Viewed:  1243 Time(s)

fullsizeoutput_2c38.jpeg



fullsizeoutput_2c52.jpeg
 Mineral: Calcite on Dolomite
 Locality:
State Route 56 road cut, Canton, Washington County, Indiana, USA
 Dimensions: The specimen is 8 cm. The Calcite crystal is 1.8 cm
 Description:
Self collected about 10 years ago.
 Viewed:  1243 Time(s)

fullsizeoutput_2c52.jpeg


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Bob Harman




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PostPosted: Feb 27, 2019 14:56    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

Collected about 20 years ago, acquired by me about 10 years ago, with the quarry closing and becoming flooded about 5 years ago, this is now a classic from this now extinct locality.

Examples of this quality, from this locality, are only rarely seen now-a-days. Culled out examples of larger doubly terminated Celestine crystals on Quartz with the limestone matrix are a true rarity.
BOB



fullsizeoutput_2c88.jpeg
 Mineral: Celestine on Quartz
 Locality:
Hoosier Stone and Concrete Corporation Quarry, Salem, Washington County, Indiana, USA
 Dimensions: Celestine is 3.8 cm in a 9.5 cm geode.
 Description:
Bi-colored and doubly terminated Celestine.
The white specks on the Celestine crystal are tiny groups of Quartz crystals
 Viewed:  1039 Time(s)

fullsizeoutput_2c88.jpeg


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PostPosted: Mar 02, 2019 14:28    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

A large piece of coarsely grained fossiliferous limestone with a 3 cm Quartz geode of little significance except for the incidental nearby occurrence of a 5 cm vug containing sprays of Aragonite. Self collected about 12 years ago.


fullsizeoutput_2c8f.jpeg
 Mineral: Quartz (geode) and Aragonite in vug
 Locality:
State Route 37 road cuts, Harrodsburg, Clear Creek Township, Monroe County, Indiana, USA
 Dimensions: See ruler for dimensions
 Description:
Quartz and Aragonite
 Viewed:  884 Time(s)

fullsizeoutput_2c8f.jpeg



fullsizeoutput_2c8e.jpeg
 Mineral: Aragonite
 Locality:
State Route 37 road cuts, Harrodsburg, Clear Creek Township, Monroe County, Indiana, USA
 Dimensions: 5 cm vug containing 2 cm Aragonite sprays
 Description:
 Viewed:  881 Time(s)

fullsizeoutput_2c8e.jpeg


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PostPosted: Mar 20, 2019 15:13    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

More examples of highly collectible Indiana Barites from my collection. All were self collected over the past 15 years.


fullsizeoutput_27d8.jpeg
 Mineral: Baryte on Quartz
 Locality:
Monroe County, Indiana, USA
 Dimensions: the Barite crystal is about 3 cm
 Description:
This example is of a single crystal, collected from a lakeshore in southern Monroe County
 Viewed:  736 Time(s)

fullsizeoutput_27d8.jpeg



fullsizeoutput_2c85.jpeg
 Mineral: Baryte and Calcite on Dolomite
 Locality:
State Route 56 road cut, Canton, Washington County, Indiana, USA
 Dimensions: the Barite crystal is about 3.5 cm. The calcite crystal is 2 cm.
 Description:
Barite crystals from this locality are greenish-yellow in color and rarely lustrous.Collected about 10 years ago.
 Viewed:  734 Time(s)

fullsizeoutput_2c85.jpeg



fullsizeoutput_2bcf.jpeg
 Mineral: Baryte on Quartz with Marcasite and/or Smythite
 Locality:
State Route 37 road cuts, Harrodsburg, Clear Creek Township, Monroe County, Indiana, USA
 Dimensions: The whole area is 7 cm
 Description:
Barytes on Quartz. There are micro Marcasites and/or Smythites as wellThese crystals clearly show the Barite inclusions. Smythite is the only mineral first found in Indiana and the Harrodsburg road cuts are the type locality for this mineral. The inclusions appear as 1mm six sided plates.
 Viewed:  735 Time(s)

fullsizeoutput_2bcf.jpeg


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Richard Arseneau




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PostPosted: Mar 20, 2019 15:25    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

Great finds! I wish I lived in a location where I could collect myself. The closest destination, that is decent, is three hours away and only accessible during low tides. The only stores that sell minerals are in the same location, as is the yearly show I attend lol.
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Bob Harman




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PostPosted: Apr 24, 2019 15:09    Post subject: Re: A mineralogical trip through the states of USA - Indiana  

An interesting and unusual small cabinet size addition to any collection, this example from Monroe County Indiana features a "window" into a 5 cm cavity with several very fresh crystals.


fullsizeoutput_2cd6.jpeg
 Mineral: Calcite and Dolomite on Quartz
 Locality:
State Route 37 road cuts, Harrodsburg, Clear Creek Township, Monroe County, Indiana, USA
 Dimensions: 8.5 cm geode with a 5 cm cavity containing a 3.6 cm calcite surrounded by dolomite and quartz crystals
 Description:
A very unusual flat sided example, self collected about 10 years ago
 Viewed:  443 Time(s)

fullsizeoutput_2cd6.jpeg



fullsizeoutput_2cd7.jpeg
 Mineral: Calcite and Dolomite on Quartz and with Marcasite
 Locality:
State Route 37 road cuts, Harrodsburg, Clear Creek Township, Monroe County, Indiana, USA
 Dimensions: as above
 Description:
Calcite and dolomite on quartz; micromarcasites in the calcite
 Viewed:  442 Time(s)

fullsizeoutput_2cd7.jpeg


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