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	84	INDEX.

	PAGE. Indian diamonds ...................... 12 „ geological formation 12 „ where found ......... 12 Iudicolite—indigo-blue tourmaline.. 53 Intaglio of aquamarine.................. 28 Iolite ................................. 71 ,, meaning of term.................. 71 „ pleoehroism of.................... 71 Irish diamonds .......................... 56 Iron pyrites ............................. 73 Itaeolumite series ........................ 12 ,, diamond matrix at Brazil.......... 12 Jade.......................................... 69 „ geological formation ............ 69 „ historical ........................... 69 ,, meaning of term ................. 70 Jagersfontein diamond.................. 19 ,, mine .................... 18 J argoons or jargons ..................... 41 Jasper ...................................... 64 ,, composition of .................. 64 ,, engraved ...................... 64 „ green ... .......................... 64 „ historical ....................... 64 ,, ribbon............................. 64 ,, various forms of ............... 64 ,, where found ..................... 65 „ yellow............................. 64 Kimberley Mine, South Africa ...... 11 „ section of.......... 11 Kidney stone.............................. 69 Koh-i-noor diamond..................... 16 „ cost of cutting 75 ,, cutting of ..... 75 Kyanite.................................... 24 ,, how resembles the sapphire 23 Labradorite..... ........................... 69 Lake George diamonds.................. 57 Lapis-lazuli ....................... .... 70 „ composition of ............ 70 „ geological formation ... 70 „ historical ................. 70 „ in Siberia ................. 70 ,, localities for.............. 70 „ origin of blue colour ... 70 „ pigment from ............ 70 ,, the Sapphirus ............ 24 ,, uses of ..................... 70 ,, value of..................... 70 Large African diamonds ............... 18, 19 Largest diamond in the world ...... 18 Large diamonds—testing their genuineness................................... 8 Large historical diamonds ...... 16,17,18 Little onyx.............................. 66 Localities of New South Wales diamonds................................ 14 Love's arrows.............................E5, 58 Lustre .......................... . ........ 9		PACE. Lustre adamantine..................... 9 ,, resinous ........................ 9 ,, pearly............................ 9 „ silky ............................ 9 ,, vitrious .......................... 9 ,, waxy ............................. 9 Malachite ................................. 73 ,, composition ot ............ 73 ,, meaning of term............ 73 „ uses of....................... 73 ,, where found ............... 73 Mantuan vase............................. 65 Map of Kimberley Mine, S. Africa... 11 Materials used for testing hardness 4 Matrix of diamond at Kimberley ... 11 Matura diamond ___................... 41 Melanite .................... .............. 36 Menilite, or Liver Opal.................. 50 Milky quartz ............................. 67 Minas Geraes, Brazil, diamond fields of ............................. 2 M ocha stone ............................. 60 Mohs' scale of hardness ............... 4 Monte Christo Mine..................... 13 Moonstone ................................. 68 ,, historical..................... 68 ,, where found ............... 68 Morion-black quartz crystal ...... .. 58 Muller's glass.............................. 50 Nephrite ................................. 69 ,, historical..................... 69 ,, of Tamerlane's tomb ...... 69 ,, where found................ 69, 70 New South Wales diamonds ......... 11 ,, localities of............ 14 „ minerals found with 13 ,, when first recorded 2 New Zealand green stone............... 69 „ ,, composition of 69 Nicolo ....................................... 66 Nussak diamond ....................... 17 Occidental ................................ 19 Oculus belus ............................ 67 Odontolite ................................ 53 Olivine..................................... 45 Onyx............................... ......... 65 ,, composition of..................... 65 ,, cups ................................ 66 ,, historical ......................... 65, 66 ,, meaning of term .................. 65 ,, Mexican .......................... 66 ,, New South Wales locality...... 66 ,, rosaries............................. 66 ,, where found........................ 66 Opal......................................... 46 ,, agate ............................... 50 ,, common............................ 50 ,, composition of .................... 46 „ fire.................................... 50 ,, geological formations............ 48, 49

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