Mineralogy. pp. 336 illusts First Edition #0720 SCARCE
acid adamantine alteration appearance associated bands basalt basic beds biotite blue brittle brown calcite called changes CHEM chemical cleavage colour Colourless common commonly COMP composed composition conglomerate contain Creek crystallise crystals dark deposits Describes DIAG direction distinct district dull earth faces FEAT feldspar field flow fragments frequently gemstone grains granite granular green grey habit hand hardness HEXAGONAL Hill igneous rocks intrusions iron known lava layers less light limestones lustre magma mainly massive material metallic metamorphic rocks minerals Mount occurs opaque origin pale parallel particles particularly pearly pegmatites perfect PHYS pink plagioclase plutonic present prismatic produce PROP quartz range rare referred resinous result River sandstone schists sediment sedimentary rocks shape silica sometimes specimens stone streak structure surface texture thin translucent Transparent types usually variety veins Vitreous volcanic yellow