ASSOCIATED MINERALS AND ALTERATION PRODUCTS. 69 
LIST OF MINERALS ASSOCIATED WITH CORUNDUM IN THE UNITED STATES, 
1. Actinolite. Georgia and North Carolina. In i»eridotitc. Primary mineral. 
2. Albite. Georgia, North Carolina, and I*ennsylvaiiia. Rock constituent 
and with peridotite. 
3. Almandite (var. garnet). Georgia, North C'arolina, Colorado, and New 
York. In gneisses and schists; regional metamori)hism. 
4. Amphlbole. Rock constituent; i)rimary and regional metamori)hism. 
r>. Andesine. North Carolina. In peridotite. Primary mineral. 
C. Andradite. North Carolina, New York. In ptn'idotite. due to metainor- 
phism ; also in gneisses — regional metamorphism. 
7. Anorthite. North Carolina and Georgia. Rock constituent. 
8. Anthqphyllite. North Carolina and Georgia. In peridotite. Primary. 
9. Apatite. North Carolina. In peridotite. Secondary product. 
10. Arfvedsonite. North Carolina. In peridotite. Primary. 
It. Aragonite. North Carolina. In peridotite. Alteration product. 
12. Asbestos (var. amphibole). Georgia, North Carolina. In peridotitw and 
pyroxenite. I'rimary. 
i;i Heryl. Greenwood, Me. In mica-schist. 
14. Kiotite. Colorado, North Carolina, and Massachusetts. Rock constituent. 
Contact and regional metamorphism. 
15. Breunnerite (var. magnesite). Georgia, North Carolina. In j)eridotite. 
Alteration i)r()du(t. 
1(). Bronzite (var. enstatite). (ieorgia and North Carolina. Rock constituent. 
17. Calcite. Rock constituent. 
18. Cerolite. Corundum Hill mine, Macon County, N. C. In peridotite. Alter- 
ation product. 
19. Chabazite. Buck Creelc mine. Clay County. .\. C. In peridotite. Alter- 
ation product. 
20. Chalcedony (var. quartz). Georgia. North Carolina, Pennsylvania. In 
peridotite. Alteration product. 
2L Chalcopyrite. In gneisses. 
22. Chlorite. California, Georgia, North Carolina, Pennsylvania, and Massa- 
chusetts. In peridotite, ami)hibolite, etc. Connnon alteration prcxhict. 
2.*^. Chloritoid. North Carolina. In peridotite. Alteration product. 
24. Chromite. (ieorgia, North ('arolina, and Pennsylvania. In i)eridotite and 
pyroxenite. Primary. 
25. ('hrysolite (or olivine). Rock constituent. 
20. Chi-ysotile (var. serpentine). Georgia, North Carolina, and Massachusetts. 
In peridotite. Alteration product. 
27. Clinochlore. California, Georgia, North Carolina, and Massachusetts. 
Alteration product. 
28. Culsageeite (var. jefferisite). North Carolina. In peridotite. Alteration 
1) rod net. 
29. Cyanite. Connecticut, Georgia, North Carolina, and \'irginia. In gneisses 
and schists. Regional metamorphism. 
30. Damourite (var. muscovite). Rock constituent; also alteration product. 
31. Deweylite. Georgia and North Carolina. In peridotite. Alteration prod- 
uct. 
32. Diallage (var. pyroxene). Rock constituent. 
33. Diaspore. California, Massachusetts. North Carolina (rare), and Penn- 
sylvania. In peridotite, amphibolite, etc. Alteration product of corun- 
dum. 
