60
    • P804235
    • Crystals of orthoclase with inclusions...
    • P804236
    • Crystals of orthoclase with inclusions...
    • P804237
    • Twinned crystal of orthoclase in St....
    • P804238
    • Luxulyanite. North Cornwall, April 16th...
    • P804239
    • Carpalla Pit. North Cornwall, April...
    • P804240
    • Carpalla Pit. North Cornwall, April...
    • P804241
    • Carpalla Pit. North Cornwall, April...
    • P804242
    • Carpalla Pit. North Cornwall, April...
    • P804243
    • Tregargus pit in China stone. North...
    • P804244
    • China stone with band of tourmaline....
    • P804245
    • Coarsely crystallised lithium bearing...
    • P804246
    • Coarsely crystallised lithium bearing...
    • P804247
    • Roche Rocks. North Cornwall, April 17th...
    • P804248
    • Roche Rocks. North Cornwall, April 17th...
    • P804249
    • Roche Rocks. North Cornwall, April 17th...
    • P804250
    • Roche Rocks. North Cornwall, April 17th...
    • P804251
    • Black Rocks - Cromford. Millstone Grit...
    • P804252
    • Black Rocks - Cromford. Millstone Grit...
    • P804253
    • In Derbyshire the Millstone Grit is...
    • P804254
    • In Derbyshire the Millstone Grit is...
    • P804255
    • Dolomitized Mountain Limestone - Hopton...
    • P804256
    • Dolomitized Mountain Limestone - Hopton...
    • P804257
    • Section in the Dolerite Sill at Ible....
    • P804258
    • [Ible]. Derbyshire, July 28th 1914.
    • P804259
    • This sill at Ible is one of nine...
    • P804260
    • [Ible]. Derbyshire, July 28th 1914.
    • P804261
    • This sheet or sill of intrusive...
    • P804262
    • This sheet or sill of intrusive...
    • P804263
    • Joints in dolerite caused by shrinkage...
    • P804264
    • Vein of Chrysolite in Dolerite Sill....
    • P804265
    • [Grange Mill]. Derbyshire, July 28th...
    • P804266
    • Grange Mill Vents. Derbyshire, July...
    • P804267
    • Agglomerate at Grange Mill which was...
    • P804268
    • Agglomerate at Grange Mill which was...
    • P804269
    • Tufa Quarry, Via Gellia. This tufa...
    • P804270
    • Tufa Quarry, Via Gellia. This tufa...
    • P804271
    • [Via Gellia]. Derbyshire, July 28th 1914.
    • P804272
    • [Via Gellia]. Derbyshire, July 28th 1914.
    • P804273
    • Scrablag. A local name for peculiarly...
    • P804274
    • Scrablag. Ible Sill. Derbyshire, July...
    • P804275
    • Tufa. Via Gellia. Matlock Bath....
    • P804276
    • Tufa. With Helix. Matlock Bath....
    • P804277
    • Carboniferous Limestone, Via Gellia....
    • P804278
    • Spheroidal dolerite, Via Gellia....
    • P804279
    • Quarry in spheroidal dolerite near the...
    • P804280
    • Quarry in spheroidal dolerite near the...
    • P804281
    • Spheroidal dolerite in quarry near Pig...
    • P804282
    • Spheroidal dolerite in quarry near Pig...
    • P804283
    • Spheroidal dolerite in quarry near Pig...
    • P804284
    • Spheroidal dolerite in quarry near Pig...
    • P804285
    • Ravenstor, Millers Dale. Derbyshire,...
    • P804286
    • Ravenstor, Millers Dale. Derbyshire,...
    • P804287
    • Ravenstor, Millers Dale. Derbyshire,...
    • P804288
    • Ravenstor, Millers Dale. Derbyshire,...
    • P804289
    • Derbyshire, July 29th 1914.
    • P804290
    • Derbyshire County Council Pit,...
    • P804291
    • Derbyshire County Council Pit,...
    • P804292
    • Derbyshire County Council Pit,...
    • P804293
    • Derbyshire County Council Pit,...
    • P804294
    • Columnar Volcanic Mud. Baked by Lava...