Calogerasite
A synonym of Simpsonite
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Formula:
Al4(Ta,Nb)3O13(OH,F)
Synonym:
A synonym of Simpsonite
Calogerasite is undoubtedly identical with Simpsonite from Tabba Tabba, Australia, described by Bowley [see Am. Mineral., 25 (1940) 313].
X-ray powder diffraction photographs made in the chemical laboratory of the U.S. Geological Survey show that the Tabba Tabba material is identical with samples from Rio Grande do Norte province, Brazil. Bowley's statement that simpsonite is optically
positive is incorrect. The name simpsonite had priority and the name calogerasite was dropped.
X-ray powder diffraction photographs made in the chemical laboratory of the U.S. Geological Survey show that the Tabba Tabba material is identical with samples from Rio Grande do Norte province, Brazil. Bowley's statement that simpsonite is optically
positive is incorrect. The name simpsonite had priority and the name calogerasite was dropped.
Unique Identifiers
Mindat ID:
40231 (as Calogerasite)
3670 (as Simpsonite)
3670 (as Simpsonite)
Long-form identifier:
mindat:1:1:40231:0 (as Calogerasite)
mindat:1:1:3670:8 (as Simpsonite)
mindat:1:1:3670:8 (as Simpsonite)
GUID
(UUID V4):
(UUID V4):
73e90ec3-cde9-49df-b322-e64029dd838f (as Calogerasite)
6d887209-1f5b-4b98-a80c-82c80c835a5d (as Simpsonite)
6d887209-1f5b-4b98-a80c-82c80c835a5d (as Simpsonite)
References for Calogerasite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Calogerasita, um novo Mineral da Familia dos Tantalatos. Mineracao e Metalurgio (Rio de Janeiro), 8, No. 44, 135-136 (1944).
American Mineralogist 30:548 [http://www.minsocam.org/ammin/AM30/AM30_548.pdf]
Internet Links for Calogerasite
mindat.org URL:
https://www.mindat.org/min-40231.html
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