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Twin Knobs No. 1 Mine, Murfreesboro, Pike Co., Arkansas, USAi
Regional Level Types
Twin Knobs No. 1 MineMine
Murfreesboro- not defined -
Pike Co.County
ArkansasState
USACountry

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Key
Latitude & Longitude (WGS84):
34° 0' 0'' North , 93° 41' 59'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Murfreesboro1,580 (2017)7.0km
Nashville4,479 (2017)14.8km
Blevins308 (2017)18.2km
Delight268 (2017)18.5km
Mineral Springs1,161 (2017)24.1km


A diamond property consisting of 13 acres.

Located 2 miles SW of the Crater of Diamonds.

Mineralization is in a lamproite diatreme.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


2 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Diamond
Formula: C
Reference: Rocks & Min.: 63:118.
'Fayalite-Forsterite Series'
Reference: Ref.: Rocks & Min.: 63:118; Mullen & Murphy (1985).
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Ref.: Rocks & Min.: 63:118; Mullen & Murphy (1985).

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Diamond1.CB.10aC
Group 9 - Silicates
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Fayalite-Forsterite Series'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Diamond1.3.6.1C
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Mixtures, etc.
'Fayalite-Forsterite Series'-

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
CCarbon
C DiamondC
OOxygen
O PhlogopiteKMg3(AlSi3O10)(OH)2
MgMagnesium
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Al PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Si PhlogopiteKMg3(AlSi3O10)(OH)2
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Mullen & Murphy (1985).
Rocks & Minerals (1988) 63, 118.

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

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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