chlorite , ; ,
chloromelanite , -븭 , -
chloropal , , , -
chlorophane ,
chlorospinel , , -븭
choker 16 ( )
chondrodite , ( )
chrome dyopside -
chromite , , ( ), , -
chryselectrum ,
chrysoberyl , ( ), - ,
chrysocolla , , ( ),
chrysolite (), - , ;~ of Brazil ,
chrysopal , Ni -
chrysophoron
chrysoprase , - ,
chrysoquartz ,
chrysotile ,
CIBJO (International Confederation of Jewelry, Silverware, Diamonds and Stones) -
ciderite , ( ) , - ,
cinder
cinnamon stone
cipolin , ,
circlet band ring
citrine , , , - , -
citrine - madeira
citrine - palmeira ,
clad
clamp ; binding ~ ; bolt ~
clarity ,
clasp - pin -
clasp - , ,
claw - setting -
clay bond
clean ,
clean diamond
clean gold
cleaning
cleavage , ; distinct ~ ( ); eminent ~ ; imperfect ~ ; good ~ ; perfect ~ ; poor ~ ()
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cleavage brittleness ,
cleavage plate
cleaved surface
clevage , , c ( )
clinoghumite , ( );
clinozoisite , ( ),
clip ,
clock - case -
clock box ,
cloisonne enamelling ; () , ,
cloth
cloud , ,
cloud agate -
Coal-jet , . jet
coarsely crystalline
coat
coating ,
cobaltite , ( ) ; ,
cobble , , ( )
cobblestone
cockle
coefficient of linear expansion
coin -
coinage -
coiner -
coining
cold chamber die - casting machine
cold saw
cold work
cold - blast cupola
cold - rolled
cold - short
cold - work hardening ( )
cold - worked
colemanite , ( ),
collar ,
collaring
collection ,
collet - ,
collet - set
colour , , ; axial ~ ( ); extreme ~ ( ); interference ~
colour print
colour zone ;
coloured ,
coloured diamonds -
coloured enamel -
columnar crystal
comb -
combination pliers
combine with -
combined cut ()
combustion
combustion temperature
combustion zone ,
commissure