TILLS
Tills are unconsolidated sediments deposited by glaciers at the melting terminus. They are soils that contain clay, sand, gravel and boulders - basically anything that the glacier picked up during its flow.
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Groupings Birthstones All Minerals Gemstones By Class etc.
ROCKS IGNEOUS ANDESITE ANORTHOSITE BASALT CARBONATITE DACITE DIORITE DUNITE GABBRO GRANITE KIMBERLITE KOMATIITE LAMPROPHYRES MONZONITE OBSIDIAN PEGMATITE PERIDOTITE PUMICE PYROXENITE RHYOLITE SCORIA SYENITE METAMORPHIC GNEISS MARBLE QUARTZITE PHYLLITE SCHIST SERPENTINITE SLATE SOAPSTONE SEDIMENTARY ANHYDRITE BANDED IRON FORMATION BRECCIA CHALK CHERT CLAYSTONE COAL CONGLOMERATE COQUINA DOLOMITE GEODES GYPSUM HALITE LIMESTONE MUDSTONE PHOSPHORITE SANDSTONE SHALE SILTSTONE TILLITE UNCONSOLIDATED SEDIMENTS ALLUVIAL DEPOSITS LAHARS MORAINES PEAT SANDS SOILS TEPHRA TILLS ORES MINING TALUS PILES PRIMORDIAL COMETS ASTEROIDS METEORITES CHONDRITES CHONDRULES CAI's PRESOLAR GRAINS METEORIC MINERALS
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