a kind of quartz porphyry
Crossword Clue

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AnswerCrossword Clue
granophyrea kind of quartz-porphyry
granophyresGRANOPHYRE, a kind of quartz-porphyry
greensanda kind of sandstone consisting largely of grains of quartz and glauconite
greensandsGREENSAND, a kind of sandstone consisting largely of grains of quartz and glauconite
ONYXKind of quartz.
SARDKind of quartz
TOPAZKind of quartz
AGATEKind of quartz
FLINTKind of quartz.
CHERTKind of quartz.
jasperskind of quartz
SARDKind of quartz.
jasperkind of quartz
ONYXKind of quartz
PRASEKind of green quartz.
onyxkind of varicolored quartz
onyxeskind of varicolored quartz
agateskind of quartz with colored bands
agatoidkind of quartz with colored bands
agatekind of quartz with colored bands