The Pebbles on the Beach pebble guide

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1 Ovoid pebble of grey granite 2 Grey granite with one surface cut and polished 3 Pebble of schist with one surface cut and polished. The laminations are more clearly seen on an uncut surface 4 Flattened ovoid pebble of crystalline limestone [unpolished] 5 Fragment of whitish chert. Its angularities show that it has not been smoothed by the action of the tides for long 6 Portion of a rounded flint pebble. Note the thick, white coating that the grey flint has acquired on the beach 7 Well-rounded pebble of fine-grained red sandstone 8 Flattened ovoid pebble of conglomerate 9 Highly polished ovoid pebble of red serpentine [white spot caused by a beam of light] 10 Fragment of jet from the Yorkshire coast, near Whitby 11 Ovoid pebble of red serpentine [unpolished] 12 Flattened ovoid pebble of schist [unpolished]. The wearing down of the stone has given the laminations on the upper side a quaint resemblance to two eyes looking through spectacles

13 Cut and polished surfaces of an ovoid pebble of dolerite from the Whin Sill. The glossy black of the polished surface contrasts with the grey, speckled and worn exterior

25 Oval slice of agate pebble, polished and stained for commercial purposes 26 Pebble of citrine, with whitish beach coating 27 Citrine pebble, highly polished

14 Pebble of black chert that has lost some of its angularities and is in process of being rounded on the beach

28 Cut pebble of purple jasper [unpolished] 29 Group of quartz prisms

15 Evenly worn pebble of dolerite from the Whin Sill [Northumbrian Coast]

30 Flattened cylindrical pebble of green serpentine

16 Fragment of basalt, strongly resisting the grinding and smoothing of tidal action

31 Well-rounded pebble of opaque quartz 32 Fragment of gabbro with one side cut and polished

17 Piece of amber from the coast of Suffolk

33 Ovoid pebble of grit, veined with quartz

18 Carnelian pebble, highly polished

34 Polished pebble of purple jasper

19 Broken piece of chalcedony 20 Oval slice of onyx stained for commercial purposes 21 Amber pebble, highly polished 22 Pebble of onyx. The banding is faintly discernible through the beach coating 23 Ovoid pebble of carnelian [unpolished] 24 Pebble of ‘fortification’ agate. The ground plan for the ‘fortress’ can be seen on the polished side

35 Ovoid pebble of quartzite with broken side uppermost, revealing the structure of tightly compacted grains

36 Ovoid pebble of slate, with a quartz vein running through it

GET YOUR SPOTTER’S GUIDE IN THE CLASSIC REISS

THE PEBBLES ON THE BEACH


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