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Dr. Samuel Fowler
Dark pink, red, red-brown, dark brown, brown-black
Named in 1832 by Charles Upham Shepard 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.
A variety of Rhodonite

Zn- and Ca-bearing variety of rhodonite which consequently is paler pink than end-member rhodonite. Fowlerite was particularly noticed as rhodonite rarely occurred in crystals before the discovery at Franklin, New Jersey, USA.

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Classification of FowleriteHide

'Grandfathered' (first described prior to 1959)

9 : SILICATES (Germanates)
D : Inosilicates
K : Inosilicates with 5-periodic single chains

Pronounciation of FowleriteHide

PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of FowleriteHide

Dark pink, red, red-brown, dark brown, brown-black

Chemical Properties of FowleriteHide


First Recorded Occurrence of FowleriteHide

Other Language Names for FowleriteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Willemite6 photos of Fowlerite associated with Willemite on
Rhodonite1 photo of Fowlerite associated with Rhodonite on

Related Minerals - Nickel-Strunz GroupingHide

9.DK.05BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)Tric. 1 : P1
9.DK.05MarsturiteNaCaMn3Si5O14(OH)Tric. 1 : P1
9.DK.05RhodoniteMn2+SiO3Tric. 1
9.DK.10SantaclaraiteCaMn4[Si5O14OH](OH) · H2OTric.
9.DK.20Hellandite-(Y)(Ca,REE)4Y2Al◻2(B4Si4O22) (OH)2Mon.
9.DK.20Hellandite-(Ce)(Ca,REE)4Ce2Al□2(B4Si4O22) (OH)2

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for FowleriteHide

Localities for FowleriteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast')
    • Atasu
Kayupova, M. M. (1963): Mineralogy of the Dzhumart iron-manganese deposit. Izvestiya Akademii Nauk Kazakhskoi SSR, Seriya Geologicheskaya, 1963 (6), 57-80.
  • Chihuahua
    • Mun. de Saucillo
      • Naica
Querol, F., 1986 Internal Penoles Mineralogical Report
  • California
    • Plumas Co.
      • Moccasin
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10140221.
  • Nevada
    • White Pine Co.
      • Eagle District
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
Shepard, C. U. (1832) Treatise of Mineralogy
  • New Mexico
    • Socorro Co.
Minerals of New Mexico 3rd ed.
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