Minerals
What is sulfur's composition?
Sulfur (S)
Is Obsidian an Intrusive or Extrusive rock?
Extrusive
What type of textures are there for metamorphic rocks?
Foliated and non-foliated.
What is the texture of inorganically formed sedimentary rocks?
Clastic
Is Pyrite a metallic luster or non-metallic luster?
Metallic
What happens to an Igneous Rock if it melts and then solidifies again?
Turns back into an Igneous Rock
How many foliated metamorphic rocks are made from regional metamorphism?
4
Shale is compacted; which means...?
May split/break easily
What shape does Garnet have and what color?
Fractural and dark red to green
What is the texture of an igneous rock formed from magma that cooled slowly deep underground?
Non-vesicular and coarse
How many metamorphic rocks are made of mica, quartz, feldspar, amphibole, garnet, and pyroxene?
2
What makes Sedimentary Rocks?
Sediments - deposition and burial - compaction and/or cementation.
What is amphibole used for?
mineral collections/jewelry
What Igneous Rock is composed of Olivine and Pyroxene?
Peridotite
Is Marble made from Regional or Contact Metamorphism?
Both
What is Siltstone's grain size?
0.0004 - 0.006
What is quartz's composition?
SiO2
What Igneous Rocks have a glassy texture, made volcanically, and has no crystals?
Pumice and Scoria
Which medium-grain-sized metamorphic rock is composed mostly of the same mineral as the sedimentary rock limestone?
Marble
What type of formation is Dolostone and what is it's texture?
Crystalline and Chemically/Organically formed.