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XV111 TABLE OF CONTENTS. XI. Clay Family. Page Page Claystonc, - - 420 Adhesive-Slate, - 421 Polier, or Polishing-Slate. 1. Common Polier-Slate, 423 2. Earthy Polier-Slate, 3. Friable Polier-Slate, Tripoli, 1. Aluminite, - 405 5, 2. Alumstone, - 407 6. 3. Porcelain Earth or Kaolin, 409 7. 4. Common Clay. 1. Loam, - - 413 2. Potters-Clay. a. Earthy Potters-Clay, 415 8. b. Slaty Potters-Clay, 417 9* Floatstone, S. Variegated Clay, ib. 4. Slate-Clay, - 418 XII. Clay-Slate Family. 1. Alum-Slate. 3. Drawing-SIate, or Black 1. Common Alum-State, 431 Chalk, 2. Glossy Alum-Slate, 432 4. Whet-Slate, 2. Bituminous Shale, 434 5. Clay-Slate, XIII. Mica Family. 1. Lepidolite, 2. Mica, 3. Pinite, 424 425 426 429 436 439 441 449 4. Chlorite. 451 1. Earthy Chlorite, 456 2. Common Chlorite, 3. Slaty Chlorite or Chlo- rite-Slate, 4. Foliated Chlorite, XIV. Lithomarge Family. 466' 468 469 4. Mountain Soap, 5. Yellow Earth, 6. Cimolite, 7. Kollyrite, 1. Green Earth, 2. Pimelite. 1. Friable Pimelite, 2. Indurated Pimelite, 3. Lithomarge. 1. Friable Lithomarge, 470 2. Indurated Lithomarge, 472 XV. Soapstone Family 458 460 461 483 474 475 477 473 1. Native Magnesia, 2. Magnesite, 3. Meerschaum, 4. Bole, •5. Sphragide, or Lemnian Earth, 480 481 483 486 489 6. Fullers-Earth, 7- Steatite, or Soapstone, 8. Figurestone, or Algalma- tolite, 491 49.5 500 XVI. Talc
