Common Minerals
Black to Silver, ore of iron or Steel.
What is Magnetite?
Compact; may split easily.
What is Shale?
Texture.
What is Crystalline or Bioclastic?
Compositon.
What is Mica, Quartz, Feldspar, Amphibole, Garnet, and Pyroxogene?
Pumice, Obsidian.
What is Vesicular and Non-Vesicular?
Yellow to amber and smells like eggs.
What is Sulfur?
Mostly quartz, feldspar, and clay minerals; may contain fragments of other rocks and minerals.
What is composition?
Carbon, Compacted plant remains.
What is Bituminous Coal?
Metamorphism.
What is Regional (heat and pressure) and Contact (heat)?
Can range from no mm to a mm larger than 10.
What is Crystal Size?
CaF2
What is Fluorite?
Rounded Fragments.
What is Conglomerate?
Grain Size.
What is Fine to Coarse or Microscopic to Very Coarse?
Banding, Minimal Alignment.
What is Foliated?
Extrusive, Less than 1 mm, Fine, Vesicular.
What is Rhyolite?
Moh's _____ Scale.
What is Hardness?
0.006 cm to 0.2 cm.
What is Sand?
What is Grain Size?
Halite, Crystalline.
What is Rock Salt?
Various rocks changed by heat from nearby magma/lava.
What is Hornfels?
Also known as Plutonic.
What is Intrusive?
Metallic to Non-metallic.
What is Luster?
Clastic; Fragmental (rounded or angular).
What is Texture?
Precipitates of biologic origin or cemented shell fragments.
What is Limestone?
Anthracite Coal.
What is Fine, Carbon, Regional, and Metamorphism of Bituminous Coal?
Diorite.
What is Intrusive, 1 to 10 mm, Coarse, and Non-Vesicular?