Pabian, Roger K. (1971) The Minerals and Gemstones of Nebraska. Educational Circular 2. University of Nebraska - Conservation and Survey Divsion

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

Locality: Road cuts, Humboldt, Richardson County, Nebraska, USA

References:

Pabian, Roger K. (1971) The Minerals and Gemstones of Nebraska. Educational Circular 2. University of Nebraska - Conservation and Survey Divsion

ⓘ Marcasite

Formula: FeS₂

Localities:

Road cuts, Humboldt, Richardson County, Nebraska, USA
Richardson County, Nebraska, USA

ⓘ Quartz

Formula: SiO₂

Localities:

Salem, Richardson County, Nebraska, USA
Dawson, Richardson County, Nebraska, USA
Falls City, Richardson County, Nebraska, USA
Humboldt, Richardson County, Nebraska, USA
Richardson County, Nebraska, USA

ⓘ Quartz var. Agate

Formula: SiO₂

Localities:

Salem, Richardson County, Nebraska, USA
Dawson, Richardson County, Nebraska, USA
Humboldt, Richardson County, Nebraska, USA

ⓘ Quartz var. Chalcedony

Formula: SiO₂

Localities:

Salem, Richardson County, Nebraska, USA
Dawson, Richardson County, Nebraska, USA
Falls City, Richardson County, Nebraska, USA
Humboldt, Richardson County, Nebraska, USA

ⓘ Quartz var. Lake Superior Agate

Formula: SiO₂

Localities:

Humboldt, Richardson County, Nebraska, USA
Salem, Richardson County, Nebraska, USA
Dawson, Richardson County, Nebraska, USA

ⓘ Quartz var. Moss Agate

Formula: SiO₂

Locality: Falls City, Richardson County, Nebraska, USA

References:

Pabian, Roger K. (1971) The Minerals and Gemstones of Nebraska. Educational Circular 2. University of Nebraska - Conservation and Survey Divsion

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Marcasite	2.EB.10a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Quartz var. Agate	4.DA.05	SiO₂
ⓘ	var. Chalcedony	4.DA.05	SiO₂
ⓘ	var. Moss Agate	4.DA.05	SiO₂
ⓘ		4.DA.05	SiO₂
ⓘ	var. Lake Superior Agate	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Celestine	7.AD.35	SrSO₄
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
Unclassified
ⓘ	'Ferro-actinolite-Tremolite Series'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Ferro-actinolite-Tremolite Series
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Quartz var. Agate	SiO₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Celestine	SrSO₄
O	ⓘ Quartz var. Chalcedony	SiO₂
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Quartz var. Moss Agate	SiO₂
O	ⓘ Quartz	SiO₂
O	ⓘ Ferro-actinolite-Tremolite Series
O	ⓘ Quartz var. Lake Superior Agate	SiO₂
Mg	Magnesium
Mg	ⓘ Ferro-actinolite-Tremolite Series
Si	Silicon
Si	ⓘ Quartz var. Agate	SiO₂
Si	ⓘ Quartz var. Chalcedony	SiO₂
Si	ⓘ Quartz var. Moss Agate	SiO₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Ferro-actinolite-Tremolite Series
Si	ⓘ Quartz var. Lake Superior Agate	SiO₂
S	Sulfur
S	ⓘ Celestine	SrSO₄
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Marcasite	FeS₂
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Ferro-actinolite-Tremolite Series
Fe	Iron
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Ferro-actinolite-Tremolite Series
Sr	Strontium
Sr	ⓘ Celestine	SrSO₄

Fossils

There are 6 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

Youngest Fossil Listed

296 Ma (Permian)

Oldest Fossil Listed

304 Ma (Carboniferous)

Stratigraphic Units

Unit	No. Occurrences	Age
Council Grove - Eskridge	25	298.9 - 295.5 Ma (Paleozoic)
Admire - Falls City - Miles Limestone	1	300.2 - 298.9 Ma (Carboniferous)
Council Grove - Foraker Limestone - Hughes Creek Shale	3	300.2 - 298.9 Ma (Carboniferous)
Foraker - Hughes Creek	1	303.7 - 298.9 Ma (Carboniferous)

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Glaukosocrinus genus	Animalia : Echinodermata : Crinoidea : Decadocrinidae : *Glaukosocrinus*	300.2 - 298.9 Ma Carboniferous
Temnospondyli unranked clade	Animalia : Chordata : Osteichthyes : Temnospondyli	298.9 - 295.5 Ma Paleozoic
Trimerorhachidae family	Animalia : Chordata : Osteichthyes : Temnospondyli : Trimerorhachidae	298.9 - 295.5 Ma Paleozoic
Diadectidae family	Animalia : Chordata : Osteichthyes : Cotylosauria : Diadectidae	298.9 - 295.5 Ma Paleozoic
Microsauria unranked clade	Animalia : Chordata : Osteichthyes : Microsauria	298.9 - 295.5 Ma Paleozoic
Edaphosauridae family	Animalia : Chordata : Osteichthyes : Cotylosauria : Edaphosauridae	298.9 - 295.5 Ma Paleozoic
Gnathorhiza serrata species	Animalia : Chordata : Osteichthyes : Gnathorhizidae : Gnathorhiza : *Gnathorhiza serrata*	298.9 - 295.5 Ma Paleozoic
Gnathorhiza dikeloda species	Animalia : Chordata : Osteichthyes : Gnathorhizidae : Gnathorhiza : *Gnathorhiza dikeloda*	298.9 - 295.5 Ma Paleozoic
Amphibamidae family	Animalia : Chordata : Amphibia : Amphibamidae	298.9 - 295.5 Ma Paleozoic
Erisocrinus longwelli species	Animalia : Echinodermata : Crinoidea : Erisocrinidae : Erisocrinus : *Erisocrinus longwelli*	300.2 - 298.9 Ma Carboniferous
Delocrinus vastus species	Animalia : Echinodermata : Crinoidea : Catacrinidae : Delocrinus : *Delocrinus vastus*	303.7 - 298.9 Ma Carboniferous
Pirasocrinidae family	Animalia : Echinodermata : Crinoidea : Pirasocrinidae	300.2 - 298.9 Ma Carboniferous
Delocrinus admirensis species	Animalia : Echinodermata : Crinoidea : Catacrinidae : Delocrinus : *Delocrinus admirensis*	300.2 - 298.9 Ma Carboniferous
Brachydectes genus	Animalia : Chordata : Osteichthyes : Caudata : Cocytinidae : *Brachydectes*	298.9 - 295.5 Ma Paleozoic
Brachydectes elongatus species	Animalia : Chordata : Osteichthyes : Caudata : Cocytinidae : Brachydectes : *Brachydectes elongatus*	298.9 - 295.5 Ma Paleozoic
Brachydectes newberryi species	Animalia : Chordata : Osteichthyes : Caudata : Cocytinidae : Brachydectes : *Brachydectes newberryi*	298.9 - 295.5 Ma Paleozoic
Acroplous vorax species	Animalia : Chordata : Osteichthyes : Temnospondyli : Eobrachyopidae : Acroplous : *Acroplous vorax*	298.9 - 295.5 Ma Paleozoic
Persephonichthys chthonica species	Animalia : Chordata : Osteichthyes : Persephonichthys : *Persephonichthys chthonica*	298.9 - 295.5 Ma Paleozoic
Plemmyradytes shintoni species	Animalia : Chordata : Amphibia : Amphibamidae : Plemmyradytes : *Plemmyradytes shintoni*	298.9 - 295.5 Ma Paleozoic
Huskerpeton englehorni species	Animalia : Chordata : Osteichthyes : Huskerpeton : *Huskerpeton englehorni*	298.9 - 295.5 Ma Paleozoic
Monongahela genus	Animalia : Chordata : Osteichthyes : Ctenodontidae : *Monongahela*	298.9 - 295.5 Ma Paleozoic

Fossil Localities

Click to show 6 fossil localities

USA

Nebraska
- Richardson County
  - Carboniferous🐚 6.5 mi south of Humboldt
  - Paleozoic🐚 Mayer Farm
  - Carboniferous🐚 Northeast of Humboldt
  - Paleozoic🐚 Raney Farm
  - Paleozoic🐚 Shot in the Dark Quarry
  - Carboniferous🐚 South of Humboldt

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Richardson_County,_Nebraska
Wikidata ID:	Q489762
GeoNames ID:	5076190

Localities in this Region

USA

Nebraska
- Richardson County
  - Dawson
  - ⭔Falls City
  - ⭔Humboldt
    - Road cuts
  - Salem

Other Regions, Features and Areas that Intersect

North AmericaContinent

North America PlateTectonic Plate

Forest City BasinBasin
Great Plains DomainDomain
Yavapai TerraneVolcanic Arc

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

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Mineral List

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Fossils

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Localities in this Region

Other Regions, Features and Areas that Intersect

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Regional Level Types
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