no. 5 



THE MICROSPECTROSCOPE IN MINERALOGY — WHERRY 



II 



Color Yellow or Brown 



Color- 

 ing ele- 

 ments 



Sphalerite 



Goethite 



Siderite 



Garnet var. andradite 



Garnet var. grossularite. .. 



Vesuvianite 



Staurolite 



Tourmaline. 



Copiapite 



Imitation topaz (Fe-glass) 



Corundum 



Greenockite. 



Iodyrite 



Orpiment 



Wulfenite 



Sulfur 



Selensulfur 



Fluorite , 



Quartz var. citrine , 



Cassiterite 



Chrysoberyl 



Calcite 



Smithsonite 



Beryl 



Olivine 



Willemite 



Thorite 



Topaz 



Axinite 



Titanite 



Apatite 



Barite 



Fe" 



Fe'" 



Fe'" 



Fe'" 



Fe'" 



Fe'" 



Fe'" 



Fe'" 



Fe'" 



Fe'" 



Fe'" 



Cd" 



Ag' 



As'" 



Movi 

 So 



Seo 



? 



Red 



Orange 



To 680 

 To 650 

 To 680 

 To 670 

 To 670 

 To 660 

 To 670 

 To 650 

 To 680 

 To 660 

 To 670 

 To 670 

 Tor 

 To 680 

 To 670 

 To 680 

 To 680 

 To 680 

 To 670 

 T0670J 

 To 670 

 To 660 

 To 670 

 To 670 

 T0670 

 To 670 

 To 670 

 To 670 

 To 670 

 To 660' 

 To 660 

 To 670 



Yellow 



Green 



550 



(560-550) 



525 



Blue 



15 



Violet 



on 

 on 



480 



470 on 



480 on 



480 on 



440 on 

 440 on 

 460 on 



440 on 



450 on 

 460 on 



460 on 

 450 on 

 460 on 

 440 on 



460 on 

 450 on 



470 

 470 



470 



on 

 on 

 on 



In addition, many rare earth and uranium minerals, listed in the preceding tables, are 

 yellow or brown in color. 



