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|Hardness:||2½ - 3|
|Name:||Named in 1994 by Roland C. Rouse, Donald Ralph Peacor, Pete J. Dunn, Shu-Chun Su, Peter H. Chi, and Herb Yeates in honor of Dr. Samuel Fowler [October 30, 1779 Newburgh, New York, USA - February 20, 1844 Franklin, New Jersey, USA], A physician with strong interests in science and business and a US Congressman from New Jersey, 1833-1837. He enlisted the aid of all scientists he could interest in the deposits of Franklin and Sterling Hill, NJ. In 1810, he purchased Mine Hill, with a partner, in Franklin, site of the Franklin orebody. In 1818 and 1824, he acquired the Sterling Mine from the Ogden family.|
This page provides mineralogical data about Samfowlerite.
Classification of Samfowlerite
|IMA status:||Approved 1991|
|Strunz 8th edition ID:||8/C.24-90|
|Nickel-Strunz 10th (pending) edition ID:||9.BF.10|
9 : SILICATES (Germanates)
B : Sorosilicates
F : Sorosilicates with mixed SiO4 and Si2O7 groups; cations in tetrahedral  and greater coordination
|Dana 8th edition ID:||220.127.116.11|
58 : SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
2 : Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in  and higher coordination; single and double groups (n = 1, 2)
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Type Occurrence of Samfowlerite
|Type Locality:||Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA|
|Year of Discovery:||1991|
Physical Properties of Samfowlerite
|Hardness (Mohs):||2½ - 3|
Crystallography of Samfowlerite
|Cell Parameters:||a = 9.06Å, b = 17.99Å, c = 14.58Å|
β = 104.86°
|Ratio:||a:b:c = 0.504 : 1 : 0.81|
|Unit Cell Volume:||V 2,296.91 Å³ (Calculated from Unit Cell)|
Optical Data of Samfowlerite
|RI values:||nα = 1.674 nβ = 1.680 nγ = 1.681|
|2V:||Measured: 29° , Calculated: 44°|
|Maximum Birefringence:||δ = 0.007|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Chemical Properties of Samfowlerite
|Simplified for copy/paste:||Ca28Mn6Zn4(Be,Zn)4Be12[(OH)3|(SiO4)3|(Si2O7)2]4|
|Essential elements:||Be, Ca, H, Mn, O, Si, Zn|
|All elements listed in formula:||Be, Ca, H, Mn, O, Si, Zn|
Relationship of Samfowlerite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
Other Names for Samfowlerite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Samfowlerite
Canadian Mineralogist (1994): 32: 43-53.
Internet Links for Samfowlerite
Localities for Samfowlerite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.