Pair of green serpentine spheres, D6cm

Pair of nephrite jade spheres, D6cm

Estimate £40-60

Fifteen mineral specimens, each cut and polished to highlight natural formations, includin...

Estimate £40-60

Two Crinoid slabs, age; Mississippian period, location; Gilmore City Formation, Iowa, larg...

Estimate £50-80

Four purple agate slices of various sizes, polished with rough edges

Estimate £30-50

Pair of copper spheres, upon carved wooden bases, D5cm

Estimate £80-120

Agate geode, with quartz crystals, in earthy tones, H9cm

Estimate £50-80

Pair of sodalite spheres, D7cm

Estimate £50-80

Agate crystal geode cluster, in black and brown tones, H19cm

Estimate £60-80

Pair of cinnabar spheres, D6cm

Estimate £40-60

Agate crystal geode cluster, in blue and purple tones, H9cm

Estimate £30-50

Polychrome jasper specimen egg, in creams, browns and earthy tones, H12cm

Estimate £70-100

Pair of aragonite spheres, D6cm

Estimate £30-50

Septarian dish, with a calcite centre and argonite/siderite lines within limestone rock an...

Estimate £100-150

Agate geode, with quartz crystals druzy, in earthy tones, H13cm

Estimate £50-70

Pair of Dugway geode, natural edged bookends, in purple tones, H16cm

Estimate £50-80

Agate crystal geode cluster, in brown and white tones, H7cm

Estimate £30-50

Septarian slice, polished, with a calcite centre and argonite/siderite lines within limest...

Estimate £30-50

Large Megalodon (Otodus Megalodon) tooth fossil, with fine serrations in a matrix, age; Mi...

Estimate £120-160

Megalodon (Otodus Megalodon) tooth fossil, with fine serrations, H11.5cm

Estimate £80-120

Megalodon (Otodus Megalodon) tooth fossil, with fine serrations, H10cm

Estimate £80-120

Large Megalodon (Otodus Megalodon) tooth fossil, with fine serrations age; Miocene period ...

Estimate £140-180

Megalodon (Otodus Megalodon) tooth fossil, with fine serrations, H10.5cm

Estimate £80-120

Megalodon (Otodus Megalodon) tooth fossil, with fine serrations, H11cm

Estimate £80-120

Megalodon (Otodus Megalodon) tooth fossil, with fine serrations, H10.5cm

Estimate £80-120

Megalodon (Otodus Megalodon) tooth fossil, with fine serrations, H10.5cm

Estimate £80-120

Megalodon (Otodus Megalodon) tooth fossil, with fine serrations, in matrix age; Miocene pe...

Estimate £80-120

Megalodon (Otodus Megalodon) tooth fossil, with fine serrations, H10.5cm

Estimate £80-120

Two Mosasaur prognathodon teeth, each in an individual matrix, largest H14cm

Estimate £60-80

Large agate crystal geode cluster, in blue, brown and cream tones, H18cm

Estimate £120-160

Pair of angelite spheres, D6cm

Estimate £50-70

Pair of polished petrified wood specimen, sliced in cross-section and polished to both sid...

Estimate £50-100

Polished petrified wood dish, some growth rings still visible, texture to edge, H5cm L24cm

Estimate £40-60

Pin dish with fossil inclusions, D10cm

Estimate £15-40

Pair of blue red slices, polished with rough edges, H14cm

Estimate £30-60

Pair of purple agate slices, polished with rough edges, raised upon gilt metal stands

Estimate £50-80

Pair red marble sphere with white and black veins, D10cm

Estimate £40-60

Amethyst crystal geode cluster, with well-defined crystals of various sizes, L22cm

Estimate £80-120

Agate crystal geode cluster, in blue and white tones, H12cm

Estimate £40-60

Agate crystal geode cluster, with crystals to the centre, in brown and grey tones, H7cm

Estimate £30-50

Two fossilised coral dish in the form of hearts, largest H13cm

Estimate £50-70

Three lewissian gniess slices, largest L10cm, H4cm

Estimate £20-40

Four fossilised fish (Knightia alta) each in an individual matrix, age; Eocene period, loc...

Estimate £50-70

Hardstone dish in the form of a leaf, L10cm

Estimate £15-40

Polished petrified wood dish, some growth rings still visible, texture to edge, H6cm L21cm

Estimate £40-60

Polished petrified wood dish, some growth rings still visible, texture to edge, H5cm L21cm

Estimate £40-60

Polished petrified wood dish, some growth rings still visible, texture to edge, H5cm L19cm

Estimate £40-60

Pair of honey onyx bookends of rectangular form with polished to three sides with a raw ou...

Estimate £50-70

Amethyst geode spheres, with white crystalline internal formation, D9cm

Estimate £50-70

Five blue agate slices, polished with rough edges, H9cm, L7cm

Estimate £30-50

Collection of blue angle aura quartz tumble stones

Estimate £40-60