A, B, C,
D, E,
F, G,
H, I,
J, K,
L, M,
N, O,
P, Q,
R, S,
T, U,
V, W,
X, Y,
Z [Introduction]
RT QUARTZITE
RT SANDSTONE
BT SILICA
NT AGATE
NT AMETHYST
NT AVENTURINE
NT BLOODSTONE
NT CHALCEDONY
NT CHRYSOPRASE
NT CITRINE
NT CORNELIAN
NT JASPER
NT ONYX
NT PLASMA
NT PRASE
NT ROCK CRYSTAL
NT ROSE QUARTZ
NT SARD
NT SARDONYX
NT SMOKY QUARTZ
QUILL NP
For the quill of a porcupine see
PORCUPINE QUILL
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z [Introduction]
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