The grey-green matrix of the ore has a)streaky yellow brown parts consisting of globular aggregates of approx. 1 mm size with brown iron along the rim, and b)dark inclusions up to 2 mm size, concentrically built, mostly globular, at parts very irregularly formed.
The textbook is intended for the economic geologist who deals with the evaluation of deposits at an early stage of developments ,it offers rules for quick and easy calculations based on the application of approximate data .it provides both the student and the geologist in the field with a complete set of rules and methods enabling them to perform a …
This report repsresente a compilation based on data soquired from Jaarb :The Geology Of Indonesia Stratigrafic loxioon of Indonesia and Other Available reportn at the Directorat Geologi Bandung
Aan Hot Departement van Economische zaken te Batavia heeftmen aan Dr. Heldring de vraag gesteld, war om het genootschap voor de uitzending van een expeditie naar indie juist het oog heeft laten vallen op nieuw-Guinea en niet op andere streken in den nederlandsch-indischen archiple.
In the malili district(including bulu balang mountains)and the vicinity of soroako,hydrosilicatic nickel ores(garnierite or chrysoprase and other minerals)