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Actinolite from
O'Toole deposit, Fortaleza de Minas, Minas Gerais, Brazil


Locality type:Deposit
Classification
Species:Actinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Actinolite data
Locality Data:Click here to view O'Toole deposit, Fortaleza de Minas, Minas Gerais, Brazil
Data Identifiers
Mindat Occurrence Record ID:563026
Long-form Identifier:1:3:563026:4
GUID (UUID V4):c7c221d6-3d37-4a87-a94c-b832a46b6f32
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
1990, pp. 904-920 The O'Toole Nickel Deposit, Morro do Ferro GreenstoneBelt, Brazil T. L. BRENNER,*N. A...J. F. H. THOMPSON BP MineraqtioLtda., Bio de Janeiro,Brazil Abstract The O'Tooleorebodyis the firsts...foundin Brazil. It is in the ArchcanMorro do Ferro greenstonebelt in the southwestpart of Minas Gerais,Brazil...iron-formationhave been defined to date in the O'Toole sequence.The depositis associated with the uppercyclethat...the thinningof the footwallsedimentsbeneaththe O'Toole deposit.This embaymentis postulatedto be primary
Journal (article/letter/editorial)
921-927 Platinum-Group Minerals in the O'Toole (Ni-Cu-Co) Deposit, Brazil CELINA MARIA LEITE MARCHETTO Av...Cdmara, 160-sala 1408, Rio de Janeiro-R J, CEP20020,Brazil Abstract The O'Toole depositis a Cu-Ni-Co sulfidelens...metamorphismand shearing. The main sulfidesof the O'Toole depositare pyrrhotite (po), pentlanditc(pn), and...were identifiedduring microscopy on ore fromthe O'Toole deposit.Mineralidentifications were madeandconfirmedby...THE O'Toole depositwasdiscoveredin 1983 by BP Minera•5o Ltda. It is situated in the Fortaleza de Minasdistrictof
 
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