Minerales y fósiles

Glassy dark crystals in black rock - British Mineralogy, Volume 3 - 1809

Pink blocky crystals in pale rock - British Mineralogy, Volume 3 - 1809

Orange tan cleaved crystal block - British Mineralogy, Volume 3 - 1809

Rounded brown stones and fragments - British Mineralogy, Volume 3 - 1809

Tube shaped fossils - British Mineralogy, Volume 3 - 1809

Bright red veined stones - British Mineralogy, Volume 3 - 1809

Mottled dark red and black mass - British Mineralogy, Volume 3 - 1809

Ridged brown bowl shaped stone - British Mineralogy, Volume 3 - 1809

Dark green rocks flecked with red - British Mineralogy, Volume 3 - 1809

Pale stone and banded slab - British Mineralogy, Volume 3 - 1809

Red and green mottled slab - British Mineralogy, Volume 3 - 1809

Landscape stone with tree-like markings - British Mineralogy, Volume 4 - 1811

Pink-flushed stone pieces - British Mineralogy, Volume 4 - 1811

Dark oval stone mottled with white - British Mineralogy, Volume 4 - 1811

Pale lens-shaped crystals on dark base - British Mineralogy, Volume 4 - 1811

Banded pebble and layered stones - British Mineralogy, Volume 4 - 1811

Pale stones patched with pink - British Mineralogy, Volume 4 - 1811

Dark oval stone with pale fragments - British Mineralogy, Volume 4 - 1811

Dark rough rock with pale patches - British Mineralogy, Volume 4 - 1811

Orange crust on pale rock - British Mineralogy, Volume 4 - 1811

Dark cleaved block and red-brown pebbles - British Mineralogy, Volume 4 - 1811

Brown grainy mineral lumps - British Mineralogy, Volume 4 - 1811

Grey rock with pebbles and a granular ball - British Mineralogy, Volume 4 - 1811

Rounded dark brown rock - British Mineralogy, Volume 4 - 1811

Turquoise green pitted rock - British Mineralogy, Volume 4 - 1811

Fibrous piece above a banded block - British Mineralogy, Volume 4 - 1811

Heap of broken fossil shells - British Mineralogy, Volume 4 - 1811

Pale yellow block with an oval mass - British Mineralogy, Volume 4 - 1811

Pale rock with brown-filled holes - British Mineralogy, Volume 4 - 1811

Green crust over brown rock - British Mineralogy, Volume 4 - 1811

Dark spotted rock and banded blocks - British Mineralogy, Volume 4 - 1811

Knobbed golden crust on black rock - British Mineralogy, Volume 4 - 1811

Dark rock split to show a cavity - British Mineralogy, Volume 4 - 1811

Grey crystals in dark brown rock - British Mineralogy, Volume 4 - 1811

Columnar dark and gold mineral block - British Mineralogy, Volume 4 - 1811

Dark green prisms in pale rock - British Mineralogy, Volume 4 - 1811

Pale rock pitted with dark holes - British Mineralogy, Volume 4 - 1811

Golden crystal clusters on pale rock - British Mineralogy, Volume 4 - 1811

Forked root-shaped brown stone - British Mineralogy, Volume 4 - 1811

Crossed pale blade crystals on rock - British Mineralogy, Volume 4 - 1811

Pale rock fragments with a cube outline - British Mineralogy, Volume 4 - 1811

Brown rock with red and dark grains - British Mineralogy, Volume 4 - 1811

Porous fossil pieces - British Mineralogy, Volume 4 - 1811

Dark grey rock with fibrous streaks - British Mineralogy, Volume 4 - 1811

Wide spray of pale blade crystals - British Mineralogy, Volume 4 - 1811

Dark rock with a grey crystal patch - British Mineralogy, Volume 4 - 1811

Dark warted rock on a pale base - British Mineralogy, Volume 4 - 1811

Dark scaly fossil on pale stone - British Mineralogy, Volume 4 - 1811