Element with 13 protons, metallic luster
Mineral exhibiting double refraction
Anemometer
Basalt
Limestone
Bauxited
Gneiss
Ship's Chronometer set on UT
Element wiht average atomic mass = 40 AMU
Lignite coal
Bituminous coal
Anthracite coal
Halite
Coral
Feldspar
Fluorescent pigment
Phospherescent pigment
Fossil
Galena
Geode
1 type of ion containing solution
Aa or pahoehoe lava
Marble
Element with specific gravity of 8-9, ductile
Magnetite
Meteorite
Mica
Obsidian
Igneous rock
Sedimentary rock (name)
Metamorphic rock (name)
A noble gas
Oil shale
Ore and its gangue (name both)
Example of oxidized metal
Iron pyrite
Pumice
Petrochemical
Geiger counter
Pure black sand (no false coloring)
Slate or Shale
Stalactite or stalagmite (Don't break)
Anticline formation (make a model)
Syncline formation (make a model)
Varve
Petrified Wood
Pele's volcanic hair
Tectite
Dark or bright line light spectrum (Look at the end of the link)
I hope this page will be useful for you. I in no way certify that this list is accurate, however, email me if you find any problems, as I would like this to be as accurate as possible.
This page last updated Saturday, March 27, 2004.