Introduction to coal petrographybySufriadinMining Engineering- UNHAS2005

How to IndentifyColourReliefShapeReflectivity

Three Maceral Group :Vitrinite- Detrovitrinite- Telovitrinie- GelovitriniteLiptinite- Resinite- Cutinite- Sporinite- Suberinite- AlgineInertinite- Micrinite- Fusinite- Macrinite- Sclerotinite

Sample PreparationGround to -1 mm (ASTM, 1991)Mixed with epoxy resinMoulded (1 inch in diameter)PolishedReady for analysed

Coal sample prep. equipments

Microscope for maceral analysis of Zeiss Axioplan

Collinite (cell interiors) and telinite (cell walls), sample form KY, US.Vitrinite MaceralMaceral Phlobapinite from Tondongkurah (Pangkep, South Sulawesi), 200x, reflected light

Telinite with resinite as filled material (darker areas)Vitrinite MaceralCollinite/resinite(r) in textinite (t)

Corpocollinite, sample from Powder River Basin (WY, US).Vitrinite MaceralGelinite (matrix vitrinite), sample form Powder River Basin, WY.US.

Liptinite Maceral :Resinite (darker areas), set in vitrinite, sample from Tondongkurah, Pangkep, South SulawesiSame as above, but with blue light excitation

Liptinite Maceral Fluorinite & Resinite with liptodetrinite & sporinite in eu-ulminite, also abundant mineral matter (sampel from East Kalimanatan, Indonesia)Same as above, but with blue light excitation

Liptinite Maceral Botryococcus telalginite, blue light excitation (sample location : Quensland Australia)Botryococcus telalginite (sample from Kentucky US).

Liptinite Maceral Cutinite, white light, sample from Gattareng-Soppeng, South SulawesiSame as above, but in blue light,

Liptinite MaceralSuberinite (white light)Suberinite (blue light)

Liptinite MaceralExsudatinite, set in vitrinite, sample lignite from Arutmin- Tanjung Formation, Kalimantan, (blue light excitation)Same as above, but in white light.

Liptinite maceral (resinite), dark, sets ini vitrinite.Same as above, but in fluorescene mode.

Inertinite MaceralSclerotinie, set in vitrinite, 500x, Refl. Light, sample from Tondongkurah.Macrinite (rounded) associated with vitrinite, and pyrite (light yellow), Refl. light

Mineral Matter in CoalPyrite,associated with clay in coal, sample from Tondongkurah, Pangkep.Pyrite framboidal associated with vitrinite

Carbonate (calcite? ca),( reddis yellow) associated with clay (dark), reflected light, 200 xPyrite (white yellow ), filled cleat as epigenetic mineral, reflected light, 200x

Clay band (c) with siderite (s) and titanium oxide (t), Kaolinite worm (brownis dark), sample form Colorado US.

Carbonate mineral (light yellow)

Coal Petrology ApplicationGeological study- Depositional environment- Basin analysis- Seam correlationCoal ExplorationTechnological application- Coal preparation- Coal combustion- Coal liquifaction- Coal gasification