rough quartz-biotite slate rock isolated on white
moss agate uncut crystal
laumontite mineral sample
tumbled quartzite mineral isolated on white
asbestos chrysotile fibers
polished quartzite mineral isolated on white
Beautiful vein of golden pyrite runs through a slab of blue slate
sample of tumbled hornfels mineral on black
Phonolithic and basaltic geological strata result in beautiful layers of striking colors
Close shot of a rock slate roof with a blurred background
satterlyite mineral sample
Quartz with pyrite fools gold crystals grown on
danburite mineral sample
unpolished schist rock isolated on white
sample of polished nuummite rock on black granite
satterlyite mineral sample
magnetite mineral sample with granite
moss agate crystal mineral
polished nuummite mineral isolated on white
A fracture in a quartz vein embedded in the blue slate of the Loiba cliffs
unpolished Hornfels rock isolated on white
tumbled gneiss mineral isolated on white
sample of tumbled phyllite mineral on black
unpolished quartzite mineral isolated on white
sample of tumbled hornfels rock on white marble
satterlyite mineral sample
unpolished quartz-muscovite slate rock isolated
asbestos, serpentine fibers
tumbled Eclogite stone isolated
polished red brown quartzite mineral isolated
