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Field book of common rocks and minerals : $b for identifying the rocks and minerals of the United States and interpreting their origins and meanings — John Shaqi

Field book of common rocks and minerals : $b for identifying the rocks and minerals of the United States and interpreting their origins and meaningsLoomis, Frederic Brewster

Science

Field book of common rocks and minerals : $b for identifying the rocks and minerals of the United States and interpreting their origins and meanings

Name: Field book of common rocks and minerals : $b for identifying the rocks and minerals of the United States and interpreting their origins and meanings
Author: Loomis, Frederic Brewster

Loomis, Frederic Brewster

Minerals -- United States; Rocks -- United States

color_)                                                     289
  Plate 18.—Typical forms for cerrusite. Forms in which anglesite
          occurs                                                      319
  Plate 19.—Sphalerite, some the normal yellow and some crystals
          with the reddish tinge. (White is dolomite.) Zincite,
          streak to the left (_in color_)                             290
  Plate 20.—A characteristic form in which sphalerite may occur.
          Characteristic form for zincite crystals. Typical form of
          crystal of willemite                                        320
  Plate 21.—Smithsonite in yellow crystals. Franklinite in
          octahedral crystals, streak to left (_in color_)            291
  Plate 22.—Moss agates, showing the dendritic growth of manganitic
          minerals, like manganite or pyrolusite. Crystal form of
          manganite                                                   321
  Plate 23.—Crystals of green corundum in syenite, from Montana.
          Typical crystal forms of corundum                           322
  Plate 24.—Arsenopyrite, showing crystals massed so as to be
          incompletely developed. Realgar as it usually occurs in
          powdery incrustations (_in color_)                          292
  Plate 25.—Large crystals of stibnite; the light colored face is
          the one parallel to which cleavage occurs. Niccolite is a
          vein in slate (_in color_)                                  293
  Plate 26.—Cobaltite, silver color, with pink tinge. Smaltite, pink
          is cobalt bloom (_in color_)                                294
  Plate 27.—Carnotite from Southwest Colorado. Cinnabar (_in color_)  295
  Plate 28.—Cassiterite, twinned crystals. The crystal form in which
          both cassiterite and rutile occur when in simple crystals.
          Multiple twinning characteristic of rutile                  323
  Plate 29.—Crystal of spinel. Crystal forms in which dolomite
          occurs                                                      324
  Plate 30.—Two intergrowing or twinned quartz crystals. Diagram of
          the typical quartz crystal. A quartz crystal on which the
          left hand rhombohedron is represented by small faces,
          while the right hand rhombohedron has large faces           316
  Plate 31.—Amethyst, not however deep enough colored for gems.
          Jasper, with botryoidal surface (_in color_)                296
  Plate 32.—Banded agate from Brazil (_in color_)                     297
  Plate 33.—Common opal from Arizona. Siliceous sinter or geyserite
          from Yellowstone Park (_in color_)                          298
  Plate 34.—Orthoclase, a cleavage piece. Crystal forms of
          orthoclase. Diagram of a multiple twin of a plagioclase
          feldspar                                                    325
  Plate 35.—A group of microcline crystals from Pike’s Peak, Colo.

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Field book of common rocks and minerals : $b for identifying the rocks and minerals of the United States and interpreting their origins and meanings

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