GREY ANTRACITE
Description
Very fine-grained dark grey quartzite with darker grey vein-structures.
Origin
Brazil
Petrographic Classification
Metamorphic rock - non foliated rocks - Quartzite (EN 12670)
Description
Very fine-grained dark grey quartzite with darker grey vein-structures.
Origin
Brazil
Petrographic Classification
Metamorphic rock - non foliated rocks - Quartzite (EN 12670)