Fluorite ............Colorless, purple, red, green, etc.
Fossil Corals........Red.
Gadolinite ..........Gray to grayish green and blue with
brown and red tints. Garnet .............Red, pink, cinnamon, orange, yellow,
pale green, bright green.
Grossularite ........Pale-green garnet.
Hematite ...........Grayish black.
Hiddenite...........Various and intermixed shades of
yellow and green.
Hyacinth ...........Orange-red garnet.
Hypersthene........Grayish, greenish and jet blacks,
green, and dark brown.
Indicolite...........Blue tourmaline.
Iolite...............Colorless, yellowish shades of white,
gray, and brown, violet, indigo,
and blue.
Isopyre..............Dark green.
Idocrase ............Vesuvianite.
Jacinth.............Yellowish-red garnet.
Jade ................Deep green.
Jargoon .............Brown zircon.
Jet .................Black.
Labradorite .........Gray, brown, or greenish brown, containing prismatic hues.
Lapis Lazuli.........Blue with yellow spangles.
Lazulite............Dark blue.
Lepidolite........... Pink and lavender to heliotrope.
Lintonite...........Nearly colorless.
Lodestone...........Black.
Malachite ..........Bright green.
Microlite ...........Hyacinth-red to yellow.
Montana Ruby.......Red garnet.
Moonstone..........Gray, with blue, green, yellow, or red
tints.
