Juddite
A discredited species name
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About Juddite
John Wesley Judd
Name:
Juddite was named by Lewis Leigh Fermor in 1908 in honor of John Wesley Judd [February 18, 1840 – March 3, 1916]. Judd was a field geologist and petrologist for the British Geological Survey and later professor of geology at the Imperial (Royal) College in London, England.
Red Mn-bearing amphibole with variable compositions. Juddite was originally defined (1908) as a manganiferous amphibole with intense pleochroism (carmine, blue or green, and orange), and with the optic axial plane is perpendicular to the plane of symmetry.
Leake (1978) set juddite as a variety of arfvedsonite based on data provided by Bilgrami (1955). Later reviews of juddite analyses has shown a wide variation of compositions in the sodium and sodium-calcium amphibole subgroups. Leakeite-group and dellaventuraite-group amphiboles was first described from juddite-like material.
Leake (1978) set juddite as a variety of arfvedsonite based on data provided by Bilgrami (1955). Later reviews of juddite analyses has shown a wide variation of compositions in the sodium and sodium-calcium amphibole subgroups. Leakeite-group and dellaventuraite-group amphiboles was first described from juddite-like material.
Unique Identifiers
Mindat ID:
11190
Long-form identifier:
mindat:1:1:11190:4
Similar Names
IMA Classification of Juddite
Discredited
Other Language Names for Juddite
Common Associates
Associated Minerals Based on Photo Data:
Other Information
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 Juddite
mindat.org URL:
https://www.mindat.org/min-11190.html
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References for Juddite
Reference List:
Bilgrami, S. A. (1955) Manganese amphiboles from Chikla, Bhandara district, India. Mineralogical Magazine and Journal of the Mineralogical Society, 30 (229) 633-644 doi:10.1180/minmag.1955.030.229.03
Nayak, V. K. (1961) Juddite from Kajlidongri manganese Mine, Jhabua District, Madhya Pradesh, India. Mineralogical Magazine and Journal of the Mineralogical Society, 32 (252) 736-737 doi:10.1180/minmag.1961.032.252.08
Localities for Juddite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
India | |
| Kilpady (1964) |
| Roy et al. (1968) |
| Nayak (1961) +1 other reference |
| Bilgrami (1955) |
South Tirodi Mine, Tirodi, Balaghat District, Jabalpur Division, Madhya Pradesh, India